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Dec 27, 2021
waterproofing agent
Silicone waterproofing agent is a new type of high-efficiency waterproofing material without pollution and irritation, which is widely used in advanced countries in the world. After this product is sprayed (or brushed) on the surface of the building, a colorless, transparent, UV-resistant, breathable film can be formed on the surface of the building, which is imperceptible to the naked eye. When rain blows on it or encounters moist air, the water droplets will be natural. Flowing, preventing the intrusion of moisture, and at the same time, it can also wash away the dust on the surface of the building, so as to make the inner wall moisture-proof, mold-proof, clean the outer wall and prevent weathering.
nature
Silicone waterproofing agent has two properties: water-based and oily. Water-based silicone waterproofing agent is colorless or light yellow. When it is mixed into cement mortar, it can also act as a retarder, water reducer and strengthening agent. effect. Therefore, it is suitable for the construction industry, exterior wall facing, underground engineering, antique buildings, pools, bricks and tiles, cement, gypsum products and thermal insulation materials with perlite as the main material, and the waterproofing, moisture-proof and pollution-proof treatment of rural roofs. . The oily silicone waterproofing agent is transparent and is generally used for glaze, ceramic tiles, floor tiles, ceramics, etc. It can be diluted with some solvents and is convenient to use.
The principle of water repellency of silicone emulsion: When the silicone emulsion is heated to above 140°C, the polysiloxane is aligned on the fabric with the hydrophobic group-CH3 facing outwards. The silicon and oxygen atoms of the silicone oil emulsion are Certain atoms form coordination bonds and hydrogen bonds, so water vapor and air can pass through the fabric, but water drops cannot. The hydroxyl group at the top of the silicone oil emulsion chain is grafted with the hydrogen-containing silicone oil, that is, the Si.H bond in the hydrogen-containing silicone oil is hydrolyzed to Si.H, which is dehydrated and grafted with the silicone oil terminal hydroxyl group to form long-chain molecules, and the molecules become larger and softer. , Can increase water repellency. Silicone oil and hydrogen-containing silicone oil are cross-linked on the surface of the fabric at 150-180°C to form a polyorganosiloxane resin film that is insoluble in water and solvents. The methyl group in the silane structure faces outwards, resulting in water repellency, discontinuity and air permeability.
Scope of application
It is widely applicable to the internal and external walls of various buildings, especially to solve the problem of indoor mildew caused by water seepage in the east and north walls of civil houses. In addition, it can also be widely used for moisture-proof and mildew-proof treatment before interior decoration, industrial plants Anti-pollution cleaning, anti-weathering, and anti-acid rain treatment of internal and external walls, as well as waterproofing projects for reservoirs, water towers, storage tanks, sewage treatment plants, and agricultural irrigation and drainage channels; for ancient buildings, stone monuments, ceramic tiles, library and archive rooms, precision instrument rooms, and Computer room, substation and distribution room, warehouse, etc. are also applicable.
1. Anti-seepage and leakage prevention for building walls, especially brick walls; anti-salt precipitation and efflorescence for granite and marble walls.
2. Waterproofing of bathrooms, kitchens, enclosed balconies, etc.
3. Moisture-proof and mildew-proof for warehouses, archives, libraries, color preservation of ancient buildings and protection of cultural relics of human civilization.
4. Impregnation: roof tiles, perlite, asbestos, inorganic fabrics, insulation materials, packaging cartons, fiberboards, etc.
5. It can be directly mixed with cement mortar and concrete. This agent can be used for mixing water by adding 2-5 times of water.
Advantage
1. High impermeability.
2. High permeability.
3. High bonding strength.
4. Strong coverage, capable of covering tiny cracks.
5. The construction is simple and fast.
6. Use with a series of adhesive products, the effect is better.
7. Green building materials products.