# Rainbow aqua 1073 RAINBOW PAINTS ## Product Name Water-Based Epoxy Cement Primer ## Product Code Rainbow aqua 1073 ## Type Two-component transparent primer composed of waterborne epoxy resin and special water-based hardener. ## Application Waterproof and alkali-resistant transparent primer for cement walls, cement pipelines and cement products. ## Properties 1. Excellent resistance to fresh water, seawater and sewage 2. Superior alkali resistance 3. Tough coating film with strong adhesion 4. Good abrasion resistance 5. Water-based coating, low VOC, eco-friendly and non-toxic ## Specification Data - Color: Transparent liquid - Specific Gravity: ≥0.85 Kg/L (mixed paint) - Viscosity: 40~50 KU (mixed paint, 25°C) - Drying Time - Tack-free: Within 24 hours - Hard dry: Within 24 hours - Full cure: 7 days (25°C) - Film Thickness: Wet film 100 μm, Dry film 25 μm - Theoretical Coverage: 38 ㎡/Gal, 10 ㎡/L, 11 ㎡/kg (Dry film thickness 25μm; actual coverage varies with cement substrate roughness) - Recoating Interval: Min. 12 hours, Max. 7 days (25°C) / Max. 5 days (30°C) - Mix Ratio: Base : Hardener = 89 : 11 (by weight) - Volume Solids: 30~32% - Pot Life: 4 hours (mixed paint at 25°C) - Thinner: Tap Water - Thinner Dosage: 0~5% (including tool cleaning), or apply undiluted - Storage Stability: Minimum 18 months under normal storage ## Application Methods Brush Coating, Airless Spray, Roller Coating ## Construction Precautions ⚠️ 1. Mix base and hardener uniformly per specified ratio before diluting with tap water. 2. Thoroughly remove all surface contaminants including moisture, grease, sludge and dust from substrates. 3. Avoid construction on rainy days or when ambient relative humidity exceeds 85%RH. Fully dry damp surfaces prior to coating. 4. Clean all coating equipment immediately after use. 5. Maintain sufficient ventilation during construction inside tanks or pits. 6. Sand the coating surface if recoating interval exceeds specified time to improve interlayer adhesion. 7. Construction below 10°C is not recommended; store paint in warehouses above 15°C to guarantee stability. ## Note Actual coverage varies subject to substrate shape, size and construction environment.