A new type of sedimentary rock-like paint, its preparation method and construction process
By using a specific coating formula and construction process, combined with three-stage particle size quartz sand, the texture effect of sedimentary rock was successfully simulated, solving the shortcomings of existing stone-like coatings in terms of construction complexity and effect control, and achieving a realistic sedimentary rock texture and convenient construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- PUTIAN WUKEXING IND & TRADE CO LTD
- Filing Date
- 2026-04-30
- Publication Date
- 2026-07-24
AI Technical Summary
Existing stone-like coatings are unable to simulate the unique layered structure and subtle color transitions of sedimentary rocks, and their application is complex and the effects are difficult to control.
Using a specific formula for primer, intermediate coat, main coat, and topcoat, combined with three-grade quartz sand, the texture effect of sedimentary rock is simulated through roller coating and spraying processes, and the smoothness is adjusted to ensure consistent construction results.
It achieves a realistic simulation of sedimentary rock texture and is easy to construct with controllable results, solving the problems of complex construction and inconsistent results in existing technologies.
Smart Images
Figure CN122445231A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of architectural decorative coatings, and in particular to a novel imitation sedimentary rock coating and its preparation method and construction process. Background Technology
[0002] With the development of the building decoration industry, natural stone (such as granite, marble, sedimentary rock, etc.) has been widely used due to its unique natural texture and decorative effect. However, it also faces problems such as resource scarcity, ecological damage from mining, high transportation costs, difficult construction, and complex maintenance. Therefore, stone-like coatings have emerged.
[0003] Currently, most stone-like coatings on the market imitate granite (real stone paint) or marble (water-based or water-based sand paint). These products mainly simulate the spots or color particles of the corresponding stone through the suspension of colored particles or emulsions. However, for sedimentary rocks, which have significant layered structures and subtle color transitions, existing stone-like coatings have obvious shortcomings: Monotonous texture: Most stone-like coatings achieve texture through single-size aggregates or simple spraying, failing to simulate the unique layered and naturally stacked texture of sedimentary rocks.
[0004] Complex processes or limited effects: Some processes, in order to better simulate the complex textures and morphology of sedimentary rocks, generally employ complex techniques. These techniques often rely heavily on the skills of the construction workers, resulting in poor repeatability and making it difficult to achieve large-scale, uniform construction.
[0005] Therefore, it is necessary in this field to develop a coating that can more realistically simulate the texture and aesthetics of sedimentary rocks, while also being easy to apply and having more controllable effects. Summary of the Invention
[0006] Therefore, based on the above background, the present invention provides a sedimentary rock-like coating, its preparation method and construction process.
[0007] The technical solution provided by this invention is as follows: A sedimentary rock-like coating comprises a primer, an intermediate coat, a base coat, and a top coat; By weight, the primer is made of the following components: 15-20 parts water, 70-80 parts silicate composite acrylic resin emulsion, 0.2-0.5 parts defoamer, and 0.3-0.8 parts thickener; By weight, the intermediate coat is made of the following components: 15-20 parts water, 0.5-0.8 parts dispersant, 15-25 parts titanium dioxide, 0.3-0.6 parts defoamer, and 40-50 parts silicone-modified acrylic resin emulsion; By weight, the main paint is made of the following components: 8-12 parts water, 0.2-0.4 parts hydroxyethyl cellulose ether, 0.3-0.5 parts dispersant, 0.4-0.8 parts defoamer, 18-25 parts water-based silicone-acrylic emulsion, and 55-70 parts quartz sand; By weight, the topcoat is made of the following components: 8-12 parts water, 80-85 parts polyurethane composite acrylic resin emulsion, and 0.3-0.8 parts thickener.
[0008] Furthermore, the titanium dioxide is selected from the rutile type.
[0009] Furthermore, the thickeners for the primer, intermediate coat, main coat, and topcoat are HEUR-type thickeners.
[0010] Furthermore, the defoamers for the primer, intermediate coat, main coat, and topcoat are selected from mineral oils or organosilicones.
[0011] Furthermore, the quartz sand in the main paint is composed of three different particle sizes, based on the main raw materials of the main paint: 15-20 parts of 40-80 mesh quartz sand; 25-30 parts of 80-120 mesh quartz sand; and 15-20 parts of 120-200 mesh quartz sand.
[0012] Based on the same inventive concept, the present invention also provides a method for preparing a simulated sedimentary rock coating, which includes the preparation of primer, intermediate coat, main coat and topcoat; The preparation of the primer includes the following steps: 1) Weigh each raw material according to the proportions; 2) Add water, defoamer, and silicate composite acrylic resin emulsion to the mixing tank in sequence, and disperse at medium speed for 2-5 minutes; 3) Slowly add the thickener to the mixing tank, disperse at high speed for 5-12 minutes until the thickener is uniform, then package and seal. The preparation of the intermediate coat includes the following steps: i) Weigh each raw material according to the proportions; ii) Add water, dispersant, titanium dioxide and defoamer to the mixing tank in sequence, disperse at high speed for 30-50 minutes, and then add the silicone-modified acrylic resin emulsion to the mixing tank and stir slowly for 3-5 minutes before packaging and sealing. The preparation of the main paint includes the following steps: I) Weigh out each raw material according to the proportions; II) Add water, hydroxyethyl cellulose ether, dispersant and defoamer to the mixing tank in sequence, and disperse at high speed for 25-40 minutes; III) Slowly add the aqueous silicone-acrylic emulsion to the stirred tank and disperse at medium speed for 3-5 minutes until homogeneous; IV) Add the quartz sand to the mixing tank and disperse at medium speed for 3-5 minutes until uniform, then package and seal. The preparation of the topcoat includes the following steps: ① Weigh each raw material according to the proportions; ② Add water and polyurethane composite acrylic resin emulsion to the mixing tank in sequence and stir at low speed for 2-6 minutes until uniform; ③ Slowly add the thickener to the mixing tank and disperse at high speed for 5-12 minutes until uniform, then package and seal.
[0013] Furthermore, the stirring speed for slow dispersion is controlled at 160-330 rpm; the stirring speed for medium-speed dispersion is controlled at 330-550 rpm; and the stirring speed for high-speed dispersion is controlled at 550-820 rpm.
[0014] Based on the same inventive concept, the present invention also provides a method for preparing a sedimentary rock-like coating and a construction process for the prepared sedimentary rock-like coating, comprising the following steps: S1: Treat the surface to be constructed to ensure its flatness, cleanliness, and dryness to meet the construction requirements; S2: Apply one coat of primer to the work surface by roller coating, let it stand for 4-8 hours to dry and cure, then apply a second coat of primer by roller coating, and let it stand for 4-8 hours to dry and cure. S3: Apply one coat of intermediate paint to the dry and cured primer on the construction surface by roller coating, and let it stand for 4-8 hours to dry and cure. S4: After the main paint is sprayed onto the dried and cured intermediate paint, wait for it to dry and cure; during the drying process of the main paint, adjust the smoothness of the sprayed main paint surface; S5: After the main paint has dried and cured, sand the dried main paint surface until it is smooth, then apply the topcoat to the main paint surface by roller coating, and let it stand for 6-12 hours to dry and cure.
[0015] Furthermore, the roller coating method is roller coating, and the spray coating is spray coating using a spray gun.
[0016] Furthermore, the operation of adjusting the flatness in step S4 is as follows: Use a spatula or scraper to scrape and flatten.
[0017] The beneficial effects achieved by this invention are as follows: The unique formulations of the primer, intermediate coat, main coat, and topcoat of this invention can more realistically simulate the unique texture of sedimentary rocks through convenient application, and the effect is controllable. Attached Figure Description
[0018] Appendix Figure 1 The wall surface with a simulated sedimentary rock texture obtained after coating application in an embodiment of the present invention. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] Example 1: A simulated sedimentary rock coating, comprising a primer, an intermediate coat, a base coat, and a top coat; By weight, the primer is made of the following components: 18 parts water, 75 parts silicate composite acrylic resin emulsion, 0.3 parts defoamer, and 0.5 parts thickener; The solid content of the silicate composite acrylic resin emulsion is ≥40%; By weight, the intermediate coat is made of the following components: 18 parts water, 0.75 parts dispersant, 20 parts titanium dioxide, 0.5 parts defoamer, and 45 parts silicone-modified acrylic resin emulsion; By weight, the main paint is made of the following components: 10 parts water, 0.3 parts hydroxyethyl cellulose ether, 0.4 parts dispersant, 0.6 parts defoamer, 20 parts waterborne silicone-acrylic emulsion, and 60 parts quartz sand; The quartz sand is composed of three different particle sizes, based on the main raw material of the main paint: 19 parts of 40-80 mesh quartz sand; 25 parts of 80-120 mesh quartz sand; and 16 parts of 120-200 mesh quartz sand.
[0021] The quartz sand adopts a "three-stage particle size quartz sand" gradation, which can simulate the particle accumulation and distribution effect of natural sedimentary rocks from the skeleton to the filler.
[0022] By weight, the topcoat is made of the following components: 10 parts water, 80 parts polyurethane composite acrylic resin emulsion, and 0.5 parts thickener.
[0023] In this embodiment, the titanium dioxide is rutile type, and the defoamer for the primer, intermediate coat, main coat, and topcoat is silicone-based. The dispersant is a polycarboxylate dispersant, specifically an acrylic-maleic anhydride copolymer salt.
[0024] The preparation of the coating in this embodiment includes the preparation of primer, intermediate coat, main coat and topcoat; The preparation of the primer includes the following steps: 1) Weigh each raw material according to the proportions; 2) Add water, defoamer, and silicate composite acrylic resin emulsion to the mixing tank in sequence, and disperse at medium speed for 2-5 minutes; 3) Slowly add the thickener to the mixing tank, disperse at high speed for 5-12 minutes until the thickener is uniform, then package and seal. The preparation of the intermediate coat includes the following steps: i) Weigh each raw material according to the proportions; ii) Add water, dispersant, titanium dioxide and defoamer to the mixing tank in sequence, disperse at high speed for 30-50 minutes, and then add the silicone-modified acrylic resin emulsion to the mixing tank and stir slowly for 3-5 minutes before packaging and sealing. The preparation of the main paint includes the following steps: I) Weigh out each raw material according to the proportions; II) Add water, hydroxyethyl cellulose ether, dispersant and defoamer to the mixing tank in sequence, and disperse at high speed for 25-40 minutes; III) Slowly add the aqueous silicone-acrylic emulsion to the stirred tank and disperse at medium speed for 3-5 minutes until homogeneous; IV) Add the quartz sand to the mixing tank and disperse at medium speed for 3-5 minutes until uniform, then package and seal. The preparation of the topcoat includes the following steps: ① Weigh each raw material according to the proportions; ② Add water and polyurethane composite acrylic resin emulsion to the mixing tank in sequence and stir at low speed for 2-6 minutes until uniform; ③ Slowly add the thickener to the mixing tank and disperse at high speed for 5-12 minutes until uniform, then package and seal.
[0025] The stirring speed for slow dispersion is controlled at 160-330 rpm; the stirring speed for medium dispersion is controlled at 330-550 rpm; and the stirring speed for high dispersion is controlled at 550-820 rpm.
[0026] The coating prepared above is applied to the construction surface, including the following steps: S1: Treat the surface to be constructed to ensure its flatness, cleanliness, and dryness to meet the construction requirements; Flatness: When checked with a 2-meter straightedge, the surface flatness error is ≤ 3 mm; Cleanliness: The surface is free of oil, dust, mold release agent, moss, and other contaminants. Alternatively, it can be rinsed with a high-pressure water gun and then air-dried. Dryness: For construction surfaces prepared with cement mortar / concrete, the moisture content of the base layer should be ≤10% when tested with a concrete moisture meter.
[0027] S2: Apply one coat of primer to the work surface by roller coating, let it stand for 4-8 hours to dry and cure, then apply a second coat of primer by roller coating, and let it stand for 4-8 hours to dry and cure. The application rate for one coat is 0.10 ~ 0.15 kg / m²; S3: Apply one coat of intermediate coat paint over the dried and cured primer using a roller, and allow it to dry and cure for 4-8 hours; the coating weight for one coat is 0.15 ~ 0.20 kg / m². 2 ; S4: After the main paint is sprayed onto the dried and cured intermediate paint, wait for it to dry and cure; during the drying process of the main paint, adjust the smoothness of the sprayed main paint surface; The coating amount is 3.0 ~ 5.0 kg / m² 2 ; S5: After the main paint has dried and cured, sand the dried main paint surface (first use 40-60 grit coarse sandpaper to level the surface, then use 80-120 grit fine sandpaper to sand it) until the surface is smooth. Then, apply the topcoat to the main paint surface by roller coating and let it stand for 6-12 hours to dry and cure.
[0028] The application rate for one coat of topcoat is 0.12 ~ 0.15 kg / m². 2 .
[0029] The roller coating method is roller coating, and the spray coating is spray coating using a spray gun.
[0030] The operation to adjust the flatness in step S4 is as follows: Use a spatula or scraper to scrape and flatten.
[0031] The attached image shows a wall surface with a simulated sedimentary rock texture obtained after applying the coating prepared above.
[0032] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, they should all fall within the protection scope of the present invention.
Claims
1. A sedimentary rock-like coating, characterized in that, It includes primer, intermediate coat, main coat and topcoat; By weight, the primer is made of the following components: 15-20 parts water, 70-80 parts silicate composite acrylic resin emulsion, 0.2-0.5 parts defoamer, and 0.3-0.8 parts thickener; By weight, the intermediate coat is made of the following components: 15-20 parts water, 0.5-0.8 parts dispersant, 15-25 parts titanium dioxide, 0.3-0.6 parts defoamer, and 40-50 parts silicone-modified acrylic resin emulsion; By weight, the main paint is made of the following components: 8-12 parts water, 0.2-0.4 parts hydroxyethyl cellulose ether, 0.3-0.5 parts dispersant, 0.4-0.8 parts defoamer, 18-25 parts water-based silicone-acrylic emulsion, and 55-70 parts quartz sand; By weight, the topcoat is made of the following components: 8-12 parts water, 80-85 parts polyurethane composite acrylic resin emulsion, and 0.3-0.8 parts thickener.
2. The sedimentary rock-like coating according to claim 1, characterized in that, The titanium dioxide used is rutile type.
3. The sedimentary rock-like coating according to claim 1, characterized in that, The thickeners used for the primer, intermediate coat, main coat, and topcoat are HEUR-type thickeners.
4. The sedimentary rock-like coating according to claim 1, characterized in that, The defoamers for the primer, intermediate coat, main coat, and topcoat are selected from mineral oils or organosilicones.
5. The sedimentary rock-like coating according to claim 1, characterized in that, The quartz sand in the main paint consists of three different particle sizes: 15-20 parts of 40-80 mesh quartz sand, 25-30 parts of 80-120 mesh quartz sand, and 15-20 parts of 120-200 mesh quartz sand, based on the main raw material of the main paint.
6. A method for preparing a sedimentary rock-like coating according to claims 1 to 5, characterized in that, It includes the preparation of primer, intermediate coat, main coat and topcoat; The preparation of the primer includes the following steps: 1) Weigh each raw material according to the proportions; 2) Add water, defoamer, and silicate composite acrylic resin emulsion to the mixing tank in sequence, and disperse at medium speed for 2-5 minutes; 3) Slowly add the thickener to the mixing tank, disperse at high speed for 5-12 minutes until the thickener is uniform, then package and seal. The preparation of the intermediate coat includes the following steps: i) Weigh each raw material according to the proportions; ii) Add water, dispersant, titanium dioxide and defoamer to the mixing tank in sequence, disperse at high speed for 30-50 minutes, and then add the silicone-modified acrylic resin emulsion to the mixing tank and stir slowly for 3-5 minutes before packaging and sealing. The preparation of the main paint includes the following steps: I) Weigh out each raw material according to the proportions; II) Add water, hydroxyethyl cellulose ether, dispersant and defoamer to the mixing tank in sequence, and disperse at high speed for 25-40 minutes; III) Slowly add the aqueous silicone-acrylic emulsion to the stirred tank and disperse at medium speed for 3-5 minutes until homogeneous; IV) Add the quartz sand to the mixing tank and disperse at medium speed for 3-5 minutes until uniform, then package and seal. The preparation of the topcoat includes the following steps: ① Weigh each raw material according to the proportion; ② Add water and polyurethane composite acrylic resin emulsion to the mixing tank in sequence and stir at low speed for 2-6 minutes until uniform; ③ Slowly add the thickener to the mixing tank and disperse at high speed for 5-12 minutes until uniform, then package and seal.
7. The method for preparing a sedimentary rock-like coating according to claim 6, characterized in that, The stirring speed for slow dispersion is controlled at 160-330 rpm; the stirring speed for medium dispersion is controlled at 330-550 rpm; and the stirring speed for high dispersion is controlled at 550-820 rpm.
8. The construction process of the sedimentary rock-like coating prepared by the method for preparing the sedimentary rock-like coating according to claims 6 to 7, characterized in that, Includes the following steps: S1: The surface to be constructed must be treated to ensure its flatness, cleanliness, and dryness to meet the construction requirements; S2: Apply one coat of primer to the work surface by roller coating, let it stand for 4-8 hours to dry and cure, then apply a second coat of primer by roller coating, and let it stand for 4-8 hours to dry and cure. S3: Apply one coat of intermediate paint to the dry and cured primer on the construction surface by roller coating, and let it stand for 4-8 hours to dry and cure. S4: After the main paint is sprayed onto the dried and cured intermediate paint, wait for it to dry and cure; during the drying process of the main paint, adjust the smoothness of the sprayed main paint surface; S5: After the main paint has dried and cured, sand the dried main paint surface until it is smooth, then apply the topcoat to the main paint surface by roller coating, and let it stand for 6-12 hours to dry and cure.
9. The construction process of a simulated sedimentary rock coating according to claim 8, characterized in that, The roller coating method is roller coating, and the spray coating is spray coating using a spray gun.
10. The construction process of a simulated sedimentary rock coating according to claim 8, characterized in that, The operation to adjust the flatness in step S4 is as follows: Use a spatula or scraper to scrape and flatten.