Silicone waterproof coating is a high-performance waterproof material with silicone as the main component. It is made through chemical modification and special processes and is widely used in construction, industry and other fields. The following are its core features and working principles:
1. Main ingredients
Silicone resin: the core waterproof component, with hydrophobicity and flexibility.
Solvent/water-based carrier: helps the coating to adhere evenly to the surface of the substrate (some products are environmentally friendly water-based formulas).
Additives: such as anti-ultraviolet agents, mildew inhibitors, etc., to enhance durability and functionality.
2. Waterproof principle
Hydrophobic barrier: Silicone molecules form a dense hydrophobic film on the surface of the substrate, preventing liquid water from penetrating while allowing water vapor to pass (breathability).
Chemical bonding: Some products can react chemically with the substrate (such as concrete, masonry) to form deep protection.
3. Core features
Super waterproof: long-term resistance to rain and humid environment.
Weather resistance: UV resistance, high and low temperature resistance (-50°C to 150°C), suitable for long-term outdoor use.
Breathable and moisture-proof: avoid condensation and mold inside the wall.
Environmentally friendly and safe: non-toxic and odorless, in line with building environmental standards.
Durability: lifespan can reach more than 10 years, low maintenance cost.
4. Typical application scenarios
Building waterproofing: roofs, exterior walls, balconies, basements.
Special areas: swimming pools, bridges, tunnels, kitchens and bathrooms.
Industrial protection: corrosion protection of metal pipes and concrete structures.
5. Construction precautions
Substrate treatment: The surface must be clean, free of oil and loose particles.
Construction method: brush, roll or spray, 2-3 layers are recommended.
Environmental requirements: avoid construction on rainy days or in extreme temperatures.
Compatibility test: if used with other coatings, it needs to be tested in advance.
6. Comparison with traditional waterproof materials
| Characteristics | Silicone coating | Traditional asphalt/polyurethane coating |
| Waterproof life | 10-20 years | 5-8 years |
| Environmental protection | No solvent volatilization,
low pollution |
Contains VOC, may pollute
the environment |
| Breathability | Excellent | Poor (prone to internal moisture) |
| High temperature resistance
|
Excellent (no flow) | Easy to soften at high temperature |
Summary
Silicone waterproof coating has become the preferred material for modern building waterproofing due to its long-term waterproof, breathable and environmentally friendly, and strong weather resistance. It is especially suitable for scenes with high requirements for durability and environmental protection.
Post time: Apr-02-2025