The application of stone protective agent in decorative engineering is more and more extensive. It effectively avoids or reduces the occurrence of various stone diseases, prevents water spots, white water, salinization, rust, silicon spots and surface pollution, and can maintain Stone decoration effect, extending the service life. The correct use of stone protective agent, the correct construction is the key to doing a good job in stone protection.

First, the development of stone protective agent

The stone protective agent is divided into four generations from the development process, and its corresponding chemical composition and quality are also corresponding to four generations;

1, building waterproof coating: non-permeable, sealed, non-breathable, easy to wear, poor texture after use.

2, osmotic coating: infiltration into the interior, surface film formation, gas permeability, methyl silicate is representative.

3, impregnating protective agent: infiltration, anti-UV, anti-aging, durable and easy to maintain, silicone acrylic.

4, environmentally friendly impregnating protective agent: the basic performance is the same as 3, environmental protection and epidemic prevention, organic fluorine as the representative.

Second, the type of stone protective agent

1, use points: surface, bottom, six-sided protective agent

2, mechanism points: infiltration, film-forming, plate penetration of protective agent

3, solvent points: water-based, oily, solution-type protective agent

4, function points: breathable, sealed (pressure-resistant, acid-resistant)

5, the effect points: waterproof, drowning, oil-proof, oil-repellent, enhanced, multi-functional protective agent

6, decorative points: brightening, brightening, primary color

Third, the correct use instructions

1. Basic conditions: protection requirements, life expectancy, compatibility, recoatability, and small test results.

2, the correct choice: look at the type of stone (stone properties, composition, structure, surface conditions, use environment) protective effect (absolute water absorption, suction, water contact angle level) penetration depth to determine the specific brand.

3, quality judgment: technical data, quality inspection report, no irritating odor, colorless uniformity; experimental judgment: the wet stone surface of the stone surface after protection is determined, splashing various dirt to the stone surface A few hours to judge.

Fourth, the correct construction instructions

1. Operating procedures: Operate according to the basic operating procedures and operating instructions of each brand.

2, the specific brushing: appropriate amount, uniform brushing, not leaking brush; temperature wind speed requirements, maintenance requirements for construction, adequate maintenance.

3, wet stone: stone bottom protection agent should be alkali resistant, pressure resistant, not easy to break.

4, special varieties: develop protective programs, use high performance or special protective agents.

5, problem treatment: after the protection, water spots, silicon spots, alkali yellow, black, cracks, stone surface whitening, etc. should be treated accordingly.  

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