MXPA97007995A - Method for applying compounds waterproofing exterior surfaces - Google Patents

Abstract

A method to apply waterproofing compounds to exterior surfaces such as painted, sealed or raw wood, or to concrete, masonry, brick, stone, etc. painted or unpainted, by mixing a waterproofing compound with water and the spray of the waterproofing compound on the surface to be treated. The waterproofing compound can be sprayed onto the surface to be treated with a hand held sprayer, such as a spray gun type vacuum cleaner or venturi closed

Description

METHOD FOR APPLYING WATERPROOFING COMPOUNDS TO EXTERIOR SURFACES The present invention relates to a method for applying waterproofing compounds to a variety of finished or unfinished exterior surfaces, such as raw wood, painted wood, artificially dyed wood, pre-sealed wood, and painted or unpainted surfaces of stone, masonry, brick , stucco, etc.

BACKGROUND OF THE INVENTION Waterproofing compounds are normally applied to materials such as wood; concrete, stucco, brick, etc., with brush, as paint, by submersion or dew. These techniques may require a lot of work and it may be necessary to clean an appliance or dispose of it once the waterproofing operation has been completed. Therefore, there is a need in the art for a simple and easy to use method for applying said waterproofing compounds.

SUMMARY OF THE INVENTION The invention provides a method for applying waterproofing compounds to exterior surfaces such as artificially dyed, painted or unpainted wood, pre-sealed wood, and stone, masonry, brick, stucco and the like painted or unpainted. The method includes the steps for supplying a waterproofing compound and for supplying pressurized water in a mixing chamber of a sprinkler pistol and spraying the waterproofing compound of the sprinkler pistol on the outer surface to be treated. The waterproofing compound is preferably an aqueous or non-aqueous based solution contained in a container placed directly or indirectly in a sprinkler pistol and water is supplied, preferably by a water hose connected to the sprinkler pistol. According to a preferred embodiment of the method, the water is supplied to the mixing chamber by means of a first inlet of the sprinkler pistol, the waterproofing compound is supplied to the mixing chamber by means of a second inlet in the sprinkler pistol, and the mixture of the waterproofing compound and the water are sprayed from the sprinkler pistol by means of an outlet of the sprinkler pistol. In the event that the sprinkler pistol is venturi or vacuum type, the water creates enough suction to remove the waterproofing compound from a container and bring the waterproofing compound to the surface to be treated. In the event that the sprinkler pistol includes a rinsing function, the sprinkler pistol may include a first and a second outlet so that the spray of the waterproofing compound is made only by the first outlet and the water to rinse the surrounding areas is sprayed only by the second exit. Alternatively, the waterproofing compound and the rinse water can be sprayed from a single outlet of the sprinkler pistol. In the sprinkler pistol, you can mix the water with the waterproofing compound to obtain a waterproofing compound ratio: water of 1: 0.5 to 1: 200, preferably 1: 1 to 1:50 or more preferably 1: 1 to 1:10 parts of the waterproofing compound by water during the mixing phase. The waterproofing compound can deviate downward as it is sprayed by the sprinkler gun to cover horizontal surfaces such as decks, paths, etc.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a venturi type sprayer useful for carrying out the method of the invention, in a transverse and partially exploded view; FIG. 2 shows a cross-sectional view of a sprinkler box shown in FIG. 1; FIGS. 3a to 3c show the details of the cover shown in FIG. 1, wherein FIG. 3a shows a longitudinal cross-sectional view of the cover, FIG. 3b shows a cross-sectional view taken along line A-A of FIG. 3a, and FIG. 3c shows a plan view of the cover shown in FIG. 3a. FIG. 4 shows details of the multi-position valve shown in FIG. 1; FIGS. 5a to 5d show details of the anti-siphoning device shown in FIG. 1, wherein FIG. 5a is a view of the axial end of a cylindrical element, FIG. 5b is a side cross-sectional view of the cylindrical element of FIG. 5a, FIG. 5c is a perspective side view of the cylindrical element that appears in FIGS. 5a to 5b, and FIG. 5d is a side view of a conical element that together with the cylindrical element forms the anti-siphoning device; FIGS. 6a to 6b show the details of the sprinkler box shown in FIG. 1, FIG. 6a shows a view of the axial end in the partial cross section of the box and FIG. 6b shows a plan view of the box; FIGS. 7a to 7c show the details of an embodiment of the sprinkler box shown in FIG. 1, FIG. 7a shows a cross-sectional view of a pressure spray pattern element, FIG. 7b shows a cross-sectional side view of the element shown in FIG. 7a, and FIG. 7c shows a front view of the element shown in FIG. 7a; FIGS. 8a to 8b show the details of an embodiment of the perforated plate shown in FIG. 1; FIGS. 9a to 9e show the details of a modification of the sprinkler shown in FIG. 1; FIG. 10 shows a vacuum cleaner type useful for carrying out the method of the invention; and FIGS. llf to llf show the details of the deflectors that can be incorporated into the sprinklers shown in FIGS. 1 and 10.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One of the purposes of the invention is to provide a method for applying waterproofing compounds to finished or unfinished exterior surfaces such as masonry, stucco, concrete, brick, etc. or raw wood, painted wood, artificially dyed wood, pre-sealed wood, exterior vinyl surfaces, such as vinyl sides, etc. The method uses an exit system based on water, in which the pressurized water is mixed with the waterproofing compound and the pressurized water brings the waterproofing compound to the surface to be treated. The method optionally includes a rinsing step for rinsing the waterproofing compound from adjacent areas such as metal and / or glass articles or structures and adjacent animal and / or plant life. The waterproofing compound applied by the coating method according to the invention includes a variety of water-based or non-aqueous based compounds. A preferred compound is the water repellent compound DOW Corning® 1-6184, a water repellent which is a low VOC siloxene, multifunctional, cross-linked, and water-soluble. According to the Dow Corning literature on the product, the compound DOW Corning® 1-6184 has 98% siloxene and 65% active material, and the hydro repellent is formulated at a concentration of 2.5 to 15% before its application. The siloxene forms an insoluble treatment in water and hydroresistant in 24 hours and the hydro repellent can be used as a penetrating sealer to give hydroresistance to highly absorbent materials such as brick, sandstone, quarry waste, limestone and concrete. In addition, the water repellent can be mixed with wax emulsions to produce water repellents for wood. Other waterproofing products that can be used according to the method of the invention include DOW Corning® 1-6248 hydro repellent; water-repellent compounds whose information is found in U.S. Patent Nos. 5,338,345 and 5,486,231; the coatings with water and low VOC, exposed in an article by Harold F. Haag, entitled "Water Coatings, Low VOC for Wood Base on Acrylic Nitrocellulose Latex", published in the Journal of Coatings Technology, Vol. 64 , No. 814, November 1992; the Bardac 80 Concentrated Wood Preservative; the water-repellents and water-repellent preservatives set forth in Research Note FPL-0124 from the Forrest Products Laboratory, Forrest Service, United States Department of Agriculture, Madison, Wisconsin, revised in 1978 and entitled "Wood Finish: Hydro-Repellent and Water-Replenishing Preservatives" by Williain C. Feist et al; the products exhibited in Research Note FPL-046, from the Forrest Products laboratory, Forrest Service of the United States Department of Agriculture, Madison, Wisconsin, revised in 1979 and titled "Natural Finishing of the Forest Products Laboratory," by John M. Black and collaborators; compounds exposed as alternatives to pentachlorophenol in the publication entitled "Alternatives of Pentachlorophenol in Natural Finish FPL and in Water-Preservative Preservatives", in publication 87-013 of September 3, 1987, Forest Products Laboratory, One Gifford Pinchot Drive, Madison , Wisconsin; As with commercially available waterproofing compounds such as penetrating sealers, wood preservatives, etc., the disclosure made in the above publications and patents are incorporated herein by reference. In order to further facilitate the application of the waterproofing compound and / or to rinse the surface to be cleaned, the spray gun may be designed to spray a pattern of the waterproofing compound or send the water jet only a sufficient distance to reach to the exterior surface to be treated; for example, the dew can be projected at a sufficient distance so that it reaches at least the first floor and even a second floor of the house or building to be treated. Such distances can be reached if the water pressure is sufficient. However, in other applications such as waterproofing exterior wooden decks, patios, roads, etc., the sprinkler pistol can be designed so that the spray pattern reaches short distances. The invention overcomes the lack of effectiveness and / or efficiency in the practices and products currently on the market. Specifically, the invention is a "do-it-yourself" waterproofing system, which utilizes the efficiency of a sprinkler placed at the end of a hose. In addition, the invention can use the pressurized water from the water hose of a house to effectively launch a waterproofing as an aqueous emulsion, at speeds of 1/6 to 2 gallons per minute for the treatment of roads, decks, patios, walls of stucco, chimneys and brick walls, wooden fences, roofs, lattices and similar. The waterproofing compound can include various ingredients such as wax for pearling with water, resin to inhibit shrinkage and expansion of wood, silicone to improve durability, a biocide for the biological control of mold and moisture stains, anti-slip agents, light-blocking agents ultraviolet, coloring agents, and other desired ingredients.

The waterproofing compound is preferably a solution with an aqueous or non-aqueous base, which can be applied with a spray gun as the vacuum-type sprayer sold by Green Garden Inc., of Somerset, Pennsylvania. This type of sprayer is known as the K-l Sprinkler from Green Garden, Model No. 103-B. The sprayer has two functions: it is used to apply the waterproofing solution to exterior surfaces, and, optionally, to rinse the surface before treatment, or to remove the waterproofing compound from adjacent areas such as plants by spraying a water rinse that uses a mild or powerful rinse. The K-l achieves this with a single exit hole that performs a dew pattern. The sprinkler K-l is illustrated in FIG. 10, which shows a sprinkler 200. This sprinkler in particular applies the waterproofing compound using a three-position selector 204, which has an "ignition" position 205, a "water only" position 206, and a "position". off "207. When attached to a garden hose 208, the sprayer may send a water-borne stream of a waterproofing compound, a stream of water to rinse, or be completely turned off. In the "on" position, a collection tube 209 acts as a basic siphon. The tube 209 is immersed in the product bottle 210 and the entire sprayer is attached to the bottle. The siphon, known as a vacuum cleaner, is created when the flowing water passes through a depression / orifice 211 in the lower part of a mixing chamber 212 of the sprayer. The vacuum is formed at the top of this orifice opening, which sends the product up through the tube to collect and into the current of water that is passing, where it is diluted / mixed. The resulting product, to the proportion of water exiting through the outlet orifice 203 of the current model of sprinkler 103-B, depends on the viscosity of the waterproofing compound. However, the optimum mixing ratio can be easily determined by conducting periodic experiments. The volume of water leaving the sprinkler K-l can be regulated by modifying the size of the sprinkler flow passages and / or the water pressure supplied to the sprinkler. The product / water ratio achieved by the sprayer is directly proportional (ie, if the volume of water increases, the volume of product must also increase) and serves to define the efficiency of the sprayer in terms of use and conservation of the product. Likewise, any sprinkler distribution that improves factors such as rinsing power, spray distance and / or product preservation can be used. It is possible to use several sprinklers to apply the waterproofing compound to the exterior surfaces according to the invention. For example, the sprayer may be of one of the types set forth in the commonly assigned United States Patent Applications with serial numbers 08 / 651,952 and 08 / 511,142 (now U.S. Patent No. 5,595,345), whose information is Incorporates to this document by reference. In the case where the sprinkler does not include the rinsing function, the sprinkler may be designed to release the waterproofing / water mixture by means of a single outlet orifice. However, other sprinkler designs may be used as those whose information is in United States Common Assignment Patent No. 5,595,345, which may improve the consistency of the water / product mixing ratio, the output level, and / or different spray patterns for rinsing with only water or the water / product mixture. In general, the sprinkler can incorporate a system with air space or a closed venturi system, a perforated plate exit mechanism and / or a double outlet chamber to draw only water through one of the exit orifices and product through the another exit hole. For example, if the sprinkler includes a rinsing function with water, the sprinkler may include a three-position valve to draw only water when in the first position, a water / product mixture when in the second position and to avoid the outflow of product or water when it is in the third position. However, when the sprinkler does not include the rinsing function, the sprinkler may include a two-position valve to supply a water / product mixture when in one position and to prevent product outflow in the second position. As shown in FIG. 1, the sprayer 2 is connected to the free end of a hose 4, like the garden hose of a house. The sprayer can also be connected to a product container 6, such as a water-based or non-aqueous-based waterproofing solution. The product is extracted from the container 6 and mixed with the pressurized water supplied by the hose 4.

The sprayer 2 includes a first adapter with internal thread 8 for joining it to the threaded end 10 of the hose 4, and a second rotary adapter with internal thread 12 for joining it to the threaded outlet 14 of the container 6. Optionally a rotating adapter can be used to connect the hose 4 to the sprayer. In addition, other methods can be used to join the hose 4 to the container 6, in substitution of the threaded adapters 8, 12; as for example the adapters with union by pressure, the adapters united by compression, etc. According to one embodiment, the sprayer 2 includes a box 20, a cover 30 and a valve 40. As shown in FIG. 2, the box 20 has a double outlet arrangement in which the upper outlet 21 is an outlet only for water, and the lower outlet 22 is the outlet for the diluted product. In the same way, as shown in FIGS. 3a to 3c, the cover 30 has an upper outlet only for water 31 and a lower outlet for diluted product 32. To the upper outlet 31 comes the water provided by the upper passage 23 of the box 20 and to the lower outlet 32 the product arrives diluted through the lower passage 24 of the box 20. In this arrangement the outlets 31 and 32 may have different shapes and / or sizes to be able to select the spray pattern that the spray is desired to spray from only water and diluted product. For example, by choosing the appropriate size and / or shape of the outlet, it is possible to apply the diluted product with a broad pattern and / or with a moderate impact force to the surface to be covered with the diluted product. On the other hand, since the rinsing with only water is applied by means of a different outlet, it is possible to apply the rinsing of only water to the surface or adjacent plants using a narrower spray pattern and / or with a greater force of impact, compared to the spray pattern used for the diluted product. With the double output arrangement it is desirable to use a multi-position valve 40, such as that shown in FIG. 4, to selectively apply water alone or the product to the respective outlets 31, 32. The valve 40 can be moved to the first, second and third positions, and thus avoids spraying only water or diluted product by the outlets 31, 32 when the valve 40 is in the third position, allows the output of diluted product through the outlet 32 and avoids water spray only through the outlet 31 when the valve 40 is in the second position, and allows the outlet of only water through outlet 31 and avoids the spray of product through outlet 32 when the valve is in the first position. As shown in FIG. 4, the valve 40 includes a cylindrical body 41 having an upper passage 42 and a lower passage 43. To supply water through the hose 4 to the passages 42 and 43, the box 20 includes a cavity 26 that is in fluid communication with the upper and lower passages 42, 43. The Body 41 is rotatably mounted in the bore 25 of the box 20, such that the upper passage 42 supplies water to the upper outlet 31 through the upper passage 23 when the valve 40 He is in the first position. By turning the valve 40 to the second position, the upper passage 42 rotates so as to remain without fluid communication with the upper passage 23 and the lower passage 43 of the body 41 is aligned with the lower passage 24 so that the product can pass to the exit lower 32. When the valve 40 rotates to the third position, the upper passage 42 remains without fluid communication with the upper passage 23 and the lower passage 43 remains without fluid communication with the lower passage 24. To prevent leakage, the body 41 includes a seal 44 which sealingly connects the inlets of the passages 23, 24 and the upper O-ring 45 and the lower O-ring 46 prevents leakage between the valve 40 and the case 20. In another embodiment, the waterproofing product in the container 6 passes to the lower passage 24 by means of a perforated plate configuration 50 mounted in a tubular projection 27 of the box 20. In particular, the waterproofing product leaves the container 6 through the tube 51, goes through several holes, 52a, 52b of the perforated plate 52, to reach the passage 28 of the box 20 and the lower passage 24. As shown in FIG. 2, the plate 52 fits tightly into an opening 29 which is defined by the tubular projection 27 and the free end of the tube 51 is hermetically attached to the opening 29, so that the plate 52 is located between the tube 51 and the passage 28. The arrangement of the perforated plate makes the mixing of waterproofing product with water more uniform and consistent, within the desired level of the water / product mixing ratio (for example 1 part of concentrated liquid product by 1 to 5). water parts), in a wide variety of water pressures (for example, 40 to 60 psi), which are what usually exist in the exterior water intakes of houses. According to another embodiment, the waterproofing product can be mixed with water in a closed venturi system. In particular, in comparison with sprinklers with vacuum-type space using an open air mixing chamber, the sprinkler 2 mixes the waterproofing product of the container 6 with the water of the hose 4 in the lower passage 24, including in the passage 24 a portion with small diameter 24a for upflow, and a portion with large diameter 24b for downflow. To improve mixing, the upstream portion 24a may have a non-circular cross section and the downstream portion 24b may have a circular cross section. The passage 28 is in fluid communication with the downstream portion 24b and the water that passes under pressure through the updraft passage 24a lowers its pressure in the passage for the downstream 24b, thus creating a partial vacuum in an area of the flow. passage 28, bringing the waterproofing product through the tube 51 to the downstream passage 24b where the waterproofing product mixes with the water and is carried by the water to the surface to be treated. According to another embodiment, the adapter 8 is integrated into the box 20; for example, the adapter 8 and the case 20 can be a single piece of injection molded plastic, as shown in FIG. 2. In this case, the box can be screwed to the hose 4 before connecting the container 6. In order to make the union of the container 6 easier, the box 20 can include a tubular projection 60 having an annular cavity 61 in the external periphery thereof. The adapter 12 is press fitted to the projection 60 by attaching the cavity 61 with a suitable annular coupling flange (not shown), by which the end 14 of the container 6 can be screwed into the adapter 12 by rotating it. If desired, another arrangement of rotating adapters such as that used to join the container 6 can be used to join the hose 4. The sprinkler 2 can include an anti-siphoning device 70 to prevent the backward flow of the waterproofing product out of the inlet 8, towards the hose 4. As shown in FIGS. 5a to 5d, the device 70 includes a cylindrical element 71 having a central passage 72 for directing water into the cavity 26, an O-ring 72 for sealingly sealing the outer periphery of the element 71 with an internal wall of the adapter 8, and a conical element 74 having a conical wall 75 and a central passage 76 for fluid communication with passage 72. The anti-siphoning device includes a flap (not shown) to prevent back flow of liquid into hose 4. The anti-siphoning device can have other suitable configurations, such as those incorporated in the vacuum cleaner type manufactured by Hayes Products, or include a backflow valve such as that disclosed in U.S. Patent No. 2,646,063. As shown in FIGS. 6a to 6b, the box 20 includes a pressure adjusting element 80 that joins the coupling projections 34 on the cover 30 (see FIG 3a). With this configuration, the cover 30 can be exchanged or exchanged with another cover having inlets with different sizes and / or shapes 31, 32 or with a deflector that deflects the spray in the desired direction and / or pattern. In addition, the cover 30 may include a baffle for deflecting down the sprayed product from the exit holes 31 and / or 32. For example, as shown with dotted lines in FIG. 3a, the cover 30 may include a baffle 35 for deflecting the spray of diluted product, making possible a fan-shaped spray pattern for spraying the product onto nearby horizontal surfaces such as wooden decks, paths, etc.

With the above-described configuration of the sprinkler, it is possible to supply a waterproofing solution together with the water provided by the garden hose and apply the waterproofing solution to exterior surfaces. Depending on the design of the sprinkler and the characteristics of the waterproofing compound, it may be possible for the sprinkler to perform a spray pattern one foot wide at a distance of 8 feet. In addition, with a water pressure of 60 psi at the end of the hose, the sprayer can send the product to heights of 30 feet, as well as send water rinsing sprays at such distances. In addition, it is possible to ship the product and rinse only water to the desired distances, such as the top of a two-story wall of a building, while at the same time preserving any desired water / product mix ratio, per example, a 1: 3 ratio of product / water. In FIGS. 7a to 7c a variation of the cover 30 is shown. In this embodiment the outlets 31, 32 of the cover can be omitted, and instead a single large opening 36 can be placed in the cover 30, as shown with lines dotted in FIG. 3b. The opening 36 must be large enough to allow the passage of the entire flow of the rinse water through the passage 23, or the entire flow of product through the passage 24a. In order to achieve the desired spray patterns for rinsing and the diluted product, respectively, the spray pattern element that is clamped by pressure 80 includes the outlets 31a, 32a, which extend the entire length of said element. When the element 80 is attached to the cover 30, the outlet 31 a is aligned with the passage 32 and the outlet 32 a is aligned with the passage 24 a. To attach the element 80 to the cover 30, the cover 30 includes the openings 37, 38 (as shown with dashed lines in FIG 3c), and the element 80 includes projections that are snapped in by pressure 81, 82 to join the openings 37, 38. Each of the exit portions of the outlets 31a, 32a have a rectangular shape, as shown in FIG. 7c. Each outlet 31a, 32a includes a first "V" shaped conical portion 83 and a second rectangular shaped portion 84 of the uniform cross section, as shown in FIG. 7a. As shown in FIG. 7c, the conical portion 83 is formed by a pair of flat vertical walls that converge towards the portion 84 of the uniform cross section. In the illustrated embodiment, the outlets 31a, 32a have outlet openings in the form of rectangles, which have a horizontal dimension of 0.092 inch, and a vertical dimension of 0.20 inch. The conical portion 83 has an entrance opening in the form of a square with dimensions of 0.20 of an inch on each side. However, the outlets 31a, 32a can have any size and / or shape that is suitable. Therefore, the configuration shown in FIG. 7a-c allows to easily change the spray pattern by placing the element 80 having the outputs of the desired size and / or shape. As shown in FIGS. 8a and 8b, at the upper end of the tube 51 the perforated plate 52 can be assembled. In this case, the perforated plate 52 can include a single hole 52c extending axially through the projection 53. The projection 53 fits firmly within of the opening of the tube 51, thus enabling an easy mounting of the perforated plate, and an easy adjustment of the product / water proportions according to the size of the opening 52c. Tube 51 may include an inverted siphon with an internal diameter of 0.1875 inch and an outer diameter of 0.25 of an inch. The projection 53 and the perforated plate 52 may be molded in a single piece of plastic or other material, with a length of approximately 0.125 inch. With this configuration, the perforated plate 52 can be located between the tube 51 and the passage 28, with the tube 51 sealingly connected to the opening 29. In case it is desired, the perforated plate 52 can be omitted and the passage 28 of the box 20 can be used to achieve any desired dilution ratio. For example, to obtain proportions of 1: 1, 1: 3 or 1: 5, the appropriate size can be given to passage 28 to achieve the required dilution ratio and the desired flow rate (eg 1/6 gallon). per minute). "The passage 28 may include one or more openings, which are made when molding the box 20. The previous one provides a simpler configuration than the perforated plate configuration.In addition, with the perforated plate configuration an almost constant proportion can be obtained of product / water, and when the perforated plate is omitted and the size of the passage 28 is changed to reach the desired ratio, a proportion with sufficient consistency is obtained as to waterproof exterior surfaces according to the invention. an insert fitted to the sprinkler pistol 100. The cavity 120 of the sprinkler pistol 100 has an end wall 136 located 0.160 of an inch above the central axis of the updraft passage 4a, and the upper end 132 of the insert has a bearing that adjusts against the end wall 136. As shown in Fig. 9a, the inlet passage 114 has a smaller diameter than the exit passage. 116, the outlet passage 116 has a smaller diameter than the upstream passage 24a, and the upstream passage 24a has a smaller diameter than the downstream passage 24b. The supply passage 118 has a diameter larger than that of the inlet passage 114, but smaller than the outlet passage 116. With this configuration, the mixing of the waterproofing product is carried out in the space where the supply passage of water 114 and the product supply passage 118 open to form the outlet passage 116. The diameter change between the water supply passage 114 and the exit passage 116 creates a pressure drop that sends the waterproofing product through the product supply passage 118 to the exit passage 116. For example, the exit passage 116 may be at least 50% larger transversely than the entry passage 114. In the embodiment illustrated, the supply passage of water 114 has a cross-sectional area of approximately 18% of the cross-sectional area of the exit passage 116. Such a configuration creates a siphon effect sufficient to send the waterproofing product upwards through the supply passage of the product 118, which has a cross-sectional area of about 12% of the exit passage area 116. The cross-sectional proportion of the exit passage 116 with the cross section of the Inlet passage 114 can be adjusted to change the vacuum applied to the product supply passage 118. For those skilled in the art it will be evident that alternative configurations can be used to supply the waterproofing product that will mix with the water. The above dimensions achieve a configuration in which the waterproofing solution can be mixed with water at the desired ratio, for example from 3 parts of water to 1 part of waterproofing solution. For those skilled in the art it will be evident that the relationship between the dimensions of the various passages can change, to obtain any desired vacuum, flow characteristics and / or the desired waterproofing / water product ratio, for example 1: 0.5 to 1 :200.

According to one aspect of the invention, the waterproofing compound can include a mixture of a non-aqueous based waterproofing solution and a mixing agent, to promote mixing with water, in order to facilitate application by means of the spray gun of the solution waterproofing with non-aqueous base to the unfinished surface. The mixing agent may include one or more solid or liquid additives. For example, the mixing agent may include a substance that is water-soluble, having a surfactant and / or a non-aqueous water-soluble solvent such as the glycol ether (eg, ethylene glycol monobutyl ether and propylene glycol methyl ether). The mixing agent may be present in the waterproofing solution with non-aqueous base in an amount sufficient to form an emulsion with the water and the waterproofing solution with non-aqueous base. For example, the mixing agent may include at least 0.05 weight% (eg 0.05 to 5% surfactant or 0.5 to 50% glycol ether) based on the total amount of waterproofing solution and mixing agent. According to another aspect of the invention, the waterproofing compound can be applied with a spray gun that also sprays a cleaning compound to clean the unfinished surface. For example, the waterproofing compound and the cleaning compound may be contained in a single container (for example, the waterproofing compound may be floating in the cleaning compound, or vice versa). The waterproofing compound and the cleaning compound can be in separate containers or in separate compartments in the same container. With this configuration of the sprinkler pistol, an unfinished surface to be treated with the waterproofing compound can first be cleaned by spraying the cleaning compound onto the unfinished surface, the unfinished surface can optionally be rinsed by means of a water spray with the sprinkler pistol, and then the waterproofing compound can be sprayed on the unfinished surface. The sprinkler pistol can include various types of baffle configurations for diverting the water / product mixture sprayed by the sprinkler pistol in the desired direction or pattern. In FIGS. lia to llf, FIGS. lla, 11c and lie showing plan views, and FIGS. 11b, lid and llf showing side views, respectively, examples of deflector configurations are shown. The rectangular baffle 300 illustrated in FIGS. 11b includes a bubble or concave cavity 302 for spreading a stream of water or a mixture of water / product with the desired pattern, such as a fan pattern.

The deflector 300 includes a projection 304 which fits in the coupling hole in part of the sprinkler pistol; for example, the coupling hole may be in the main body or in the removable cover attached to the sprinkler pistol. FIGS. 11c to lid show a baffle 310 having a triangular shape, a small bubble / cavity 312 for deflecting a water jet or water / product mixture with the desired pattern (as illustrated by the arrows in FIG. projection 304 for attaching the deflector 310 to the sprinkler pistol. The semicircular deflector 320 shown in FIGS. The llf includes a bubble / cavity 322 and a projection 304. As shown in the side views of FIGS. 11b, lid and llf, deflectors 300, 310 and 320 have thin profiles and can be relatively straight (FIG 11b), can be bent at an obtuse angle in the center (FIG. Lid) or can be bent with a small bend where the projection is located (FIG. The foregoing describes the principles, preferred embodiments and modes of operation of the present invention. However, it should not be construed that the invention is limited to the embodiments discussed in particular. Therefore, the above described embodiments should be considered as examples and not as restrictions, and it should also be considered that those skilled in the art can make variations to those embodiments without departing from the scope of the present invention, as defined in the following claims.

Claims (22)

WHAT IS REVINDED IS:

1. A method for waterproofing, which includes the following steps: forming a mixture of waterproofing compound and water by providing a waterproofing compound and supplying pressurized water in a mixing chamber of a spray gun manually connected to the end of a hose; spray the mixture of waterproofing compound with and water with the spray gun towards the outer surface to be treated; Allow the waterproofing compound to remain on the surface to be treated for a period sufficient to wet the waterproofing compound.

2. The method of Claim 1, wherein the water is supplied to the mixing chamber by means of a garden hose connected to a first inlet of the sprinkler pistol, the waterproofing compound is supplied from the container attached to the sprinkler pistol inside the chamber of mixing by means of a second inlet of the sprinkler pistol, and the waterproofing compound is sprayed with the sprinkler pistol through an outlet of the sprinkler pistol.

3. The method of Claim 2, wherein the sprinkler pistol includes first outlets and second outlets, and wherein the waterproofing compound is sprayed only from the first outlet and the rinse water is sprayed only from the second outlet.

4. The method of Claim 1, wherein the waterproofing compound includes an aqueous based or non-aqueous based waterproofing compound.

5. The method of Claim 1, wherein the waterproofing compound is sprayed with the spray gun and deflected by means of a baffle in the spray gun with a substantially uniform pattern.

6. The method of Claim 1, wherein they apply approximately 1 to 10 liters of waterproofing compound per square meter to the surface to be treated.

7. The method of Claim 1, wherein the sprinkler pistol includes a sprinkler type vacuum gun.

8. The method of Claim 1, wherein the sprinkler pistol includes a venluri type sprinkler pistol.

9. The method of Claim 1, wherein the waterproofing compound includes at least one wax, a resin, a UV blocker, a sealant, a biocide, a coloring agent and an anti-skid agent.

10. The method of Claim 1, wherein the waterproofing compound includes a non-aqueous based waterproofing compound and a mixing agent, the mixing agent being in an amount sufficient to form an emulsion when the waterproofing compound is mixed with the water in the water. mixing chamber.

11. A method for waterproofing exterior surfaces including unpainted wood, sealed or unsealed wood, painted or unpainted masonry, concrete, stucco, or brick by using a spray gun manually connected to the end of a portable double barrel hose to selectively spraying a water rinse through a first outlet and spraying a waterproofing product through the second outlet; including the sprinkler pistol a first entrance connected to a water hose and a second entrance connected to a container of a waterproofing compound. The method includes: mixing the waterproofing compound with pressurized water to form a mixture of waterproofing compound and water, and spraying the mixture on the surface to be treated, as the mixture is sprayed through the second outlet of the sprinkler pistol when moving a valve of the sprinkler pistol to a position in which the first and the second inlet are in fluid communication with the second outlet; Y

12. The method of Claim 11, wherein the waterproofing compound includes a waterproofing solution with aqueous base or non-aqueous base.

13. The method of Claim 11, wherein the sprinkler pistol includes a box having a first and a second passage, the first passage being in fluid communication with the first outlet and the first entry, the second passage being in fluid communication with the first passageway. second outlet and the first and second entrances, and in which the mixing is carried out in the second passage and the rinsing of only water is supplied through the first passage.

14. The method of Claim 11, wherein the sprinkler pistol includes a box having the first and the second outlet and a cover mounted on the box, wherein the cover includes a first, n, n fluid communication with the container. first outlet from the box and a second outlet in fluid communication with the second outlet of the box, and in which the first and second outlet of the cover allow different spray patterns of the water-only rinse and the mixture, respectively.

15. The method of Claim 11, wherein the valve includes a first and a second passage, the first passage being in fluid communication with the first inlet and the first outlet when the valve is in the first position, and the second passage being in fluid communication with the first inlet and the second outlet when the valve is in the second position.

16. The method of Claim 11, wherein during the mixing phase the waterproofing compound and the water are mixed to obtain a mixture at a ratio of 1: 0.5 to 1: 200 parts of waterproofing compound.

17. The method of Claim 11, wherein the waterproofing compound is siphoned from the container and mixed with the water in a mixing chamber of the sprinkler pistol.

18. The method of Claim 11, wherein the box includes a removable baffle that biases the mixture with a substantially uniform pattern.

19. The method of Claim 11, wherein the sprinkler pistol includes a box having the first and second outlet and a deflector mounted on the box, and the deflector deflects the mixture with a substantially uniform pattern.

20. The method of Claim 11, wherein the sprinkler pistol includes a sprinkler attached manually to a hose, of a vacuum or closed venturi type.

21. The method of Claim 11, wherein the waterproofing compound includes at least one wax, a resin, a UV blocker, a sealant, a biocide, a coloring agent and an anti-skid agent.

22. The method of Claim 11, wherein the waterproofing compound includes a waterproofing compound with a non-aqueous base and a mixing agent, the mixing agent being present in an amount sufficient to form an emulsion when the waterproofing compound is mixed with the water in the water. the mixing chamber.