Waterproof primer for buildings

A waterproof primer and construction technology, applied in the field of architectural coatings, can solve the problems of whitening, yellowing, discoloration of coatings, etc., and achieve the effects of shortening strong alkali, good filling, and simple and convenient construction

Inactive Publication Date: 2011-07-20
ASIA PAINT SHANGHAI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of paint discoloration, such as discoloration, yellowing, and whitening, caused by various reasons in the construction process of exterior wall paint, such as fading, yellowing, and whitening, and provides a construction Waterproof primer, with excellent bonding strength, excellent resistance to alkali reversion and salting-out resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The components of this example are: 41.75kg of water, 55kg of silicon-acrylic emulsion, 0.1kg of bactericide CI15, 0.15kg of defoamer BYK025, 0.5kg of thickener RM-8W, 2kg of film-forming agent propylene glycol butyl ether, organic silicon Focus accelerator BYK345 0.5kg.

[0037] Silicone acrylic emulsion is silicone acrylic emulsion LH951, which was purchased from Shanghai Showa Chemical Co., Ltd.; BYK345 was purchased from German BYK Chemical Company; fungicide CI15 was purchased from German Clariant Company; defoamer BYK025 was purchased from German BYK Chemical Company; Agent RM-8W was purchased from Rohm and Haas Company, USA.

[0038] The preparation process is as follows: first add water to the container, then add emulsion, bactericide, defoamer, film-forming agent, and silicone adhesion promoter sequentially under the condition of low-speed stirring at 300 rpm, and adjust the viscosity to 15 with a thickener at 800 rpm. ±2s (apply 4 cups), fully stir evenly.

...

Embodiment 2

[0044] The components of this example are: 57.3kg of water, 40kg of styrene-acrylic emulsion, 0.1kg of fungicide LXE, 0.1kg of defoamer CF246, 1.0kg of thickener UH420, 1.0kg of film-forming agent propylene glycol butyl ether, silicone adhesion Accelerator BYK333 0.5kg.

[0045] Styrene-acrylic emulsion was purchased from Shanghai Showa Chemical Co., Ltd.; BYK333 was purchased from BYK Co., Ltd. of Germany; fungicide LXE was purchased from Rohm and Haas Company of the United States; defoamer CF246 was produced from Blackburn Chemical Company of England; Shanghai Zhaori Chemical Company.

[0046] The preparation process is as follows: first add water to the container, then add emulsion, bactericide, defoamer, film-forming agent, and silicone adhesion promoter sequentially under the condition of low-speed stirring at 500rpm, and adjust the viscosity to 15 with thickener at 600rpm ±2s (coating - 4 cups), fully stir evenly.

[0047] After inspection, the waterproof primer coatin...

Embodiment 3

[0049] The components and content of this embodiment are: 48.8kg of water, 45kg of pure acrylic emulsion, 0.1kg of fungicide HFI, 0.1kg of defoamer BYK028, 1.5kg of thickener UH450, 5.0kg of film-forming agent propylene glycol methyl ether acetate , Silicone adhesion promoter BYK330 0.5kg.

[0050] Pure acrylic emulsion was purchased from American Dow Chemical Co., Ltd.; BYK330 was purchased from German BYK Chemical Co., Ltd.; fungicide HFI was purchased from German Clariant; defoamer BYK028 was purchased from German BYK Chemical Company; thickener UH450 was purchased from Shanghai Zhaori Chemical Company.

[0051] The preparation process is as follows: first add water to the container, then add emulsion, bactericide, defoamer, film-forming agent, and silicone adhesion promoter sequentially under the condition of low-speed stirring at 300 rpm, and adjust the viscosity to 15 with a thickener at 500 rpm. ±2s (apply 4 cups), fully stir evenly.

[0052] After inspection, the wat...

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PUM

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Abstract

The invention provides a waterproof primer for buildings, which comprises the following components in percentage by weight: 40-60% of cationic emulsion, 0.5-1.0% of organosilicon adhesive force accelerator, 0.1-0.5% of defoaming agent, 0.01-0.3% of bactericide, 1-5% of film-forming assistant, 0.5-5% of thickening agent and the balance of water. By selecting the proper cationic emulsion, the alkali-curing substrate-sealed waterproof primer for buildings has the advantages of high alkali resistance, high sealing performance, high binding strength, excellent functional characteristics and strong adaptability to the substrate, and is easy and convenient for construction.

Description

technical field [0001] The invention relates to a paint for building, in particular to a waterproof primer for building. Background technique [0002] With the rapid development of my country's construction industry, architectural coatings have gradually become the main material for building interior and exterior wall decoration. The base layer of architectural coatings is usually a cement-like inorganic material with strong alkalinity. After the construction of the main body of the building is completed, in order to reduce the alkalinity and moisture content of the base layer, it will not cause problems such as salting out and whitening of the coating surface after the coating is completed. , Generally, it takes a long time to maintain, which is contrary to the actual situation of real estate development pursuing high efficiency and short construction period. [0003] Before the coating is applied, an alkali-resistant sealing primer is usually applied to improve the adhesi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D133/04C09D5/14C09D5/00
Inventor 李金钟
Owner ASIA PAINT SHANGHAI
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