Waterproof Paint (Cat Anti Air) Product Knowledge: Properties, Selection and Application Guide

<h2>What is Waterproof Paint (Cat Anti Air)</h2> Waterproof paint, often called **Cat Anti Air** (Indonesian meaning waterproof paint) in Southeast Asian markets, is a functional coating that forms a continuous seamless waterproof membrane on building surfaces after application. Its main role is to block water penetration and protect substrates such as concrete, mortar, and metal from water erosion and carbonation. With the promotion of green buildings, old community renovations, and underground space development, waterproof coatings have become one of the fastest-growing categories in the building materials field. Compared with traditional membranes, coatings are easy to apply, seamless, and easy to maintain, especially suitable for complex node treatment.<h2>Core Performance and Industry Data of Waterproof Paint</h2> Professional waterproof paint must have the following key performance indicators: - **Impermeability**: Withstand static water pressure ≥0.6MPa (according to GB/T 23445-2009) - **Elongation**: Break elongation ≥150%, adapting to micro-crack displacement - **Weather resistance**: No powdering or cracking after 500h UV exposure - **Bond strength**: Adhesion to substrate ≥1.0MPa, avoiding hollow drum - **Environmental**: VOC <80g/L, meeting green building standards<p>According to **Global Market Insights**, the global waterproof paint market reached USD 21.5 billion in 2022, projected to exceed USD 32 billion by 2030, with Asia-Pacific share >45% and China contribution >60%. China Building Waterproof Association data shows 2023 output exceeded 6 million tons, accounting for 32% of waterproof materials, CAGR ~8.5% in five years. In ASEAN countries like Indonesia, Cat Anti Air local and import growth is 12%.</p><h2>Main Types and Applications</h2> - **Polymer cement (JS) coating**: Acrylic emulsion + cement, eco-friendly, for bathrooms, basements, pools. - **Polyurethane (PU) coating**: Single/double component, high elasticity, for roofs, bridges, parking. - **Acrylic coating**: Water-based, weather-resistant, for exterior walls, terraces. - **Epoxy coating**: Chemical resistant, for industrial floors, sewage pools. - **Spray polyurea**: Fast cure, for high-speed rail, tunnels.<h2>Selection Guide</h2> 1. **Certification**: Prefer China Ten-ring, CE, or Indonesia SNI. 2. **Metrics**: Request test report, verify tensile strength. 3. **Scenario**: JS for wet base, PU for dynamic cracks, acrylic for exposed. 4. **Dosage**: ~1.5kg/㎡ for 1mm film, consider loss. 5. **Authenticity**: Scan QR code to trace source.<h2>Application Key Points</h2> - **Surface prep**: Remove dust, oil; solid, flat, moisture <10%; corners rounded. - **Coating**: Cross-hatch method, thin first coat, second after touch dry, at least two coats. - **Details**: Pipe roots, drains use non-woven fabric reinforcement. - **Curing**: Temp 5-35℃, humidity <85%, 48h cure then 24h water test.<h2>Market Trend and Conclusion</h2> Under carbon neutrality, **water-based, high-solid, renewable** Cat Anti Air shares rise. Suggest optimizing design with product knowledge to reduce leakage (average rate from 30% to 15%) and extend building life.