# WATER-BASED ACRYLIC PRIMER RAINBOW PAINTS ## Product Code No.410-1 ## Type Water-based cement primer refined from waterborne pure acrylic resin and weather-resistant pigments. ## Application Base primer for cement substrates. ## Properties 1. Fast drying, excellent workability 2. Outstanding adhesion 3. Superior alkali resistance, effectively blocks alkali salt efflorescence on fresh cement surfaces 4. Uses clean water as solvent, non-toxic, odor-free, low VOC and non-flammable ## Specification Data - Gloss: Matte - Color: White - Covering Power: ≥6 ㎡/L - Specific Gravity: ≥1.45 kg/L - Viscosity: 90~110 KU (25°C) - Drying Time - Surface dry: Within 0.5 hour - Hard dry: Within 3 hours (25°C) - Film Thickness: Wet film 75 μm, Dry film 35 μm - Theoretical Coverage: 13.3 ㎡/L, 9.2 ㎡/kg - Recoating Interval: Minimum 3 hours - Volume Solids: 47% - Thinner: Tap Water - Thinner Dosage: 5~10% - Compatible Topcoats: NO.406, 408, 410, 450, 860, 960, No.1000, SA2000 and all other Rainbow water-based cement paints - Storage Stability: Minimum 3 years when stored in cool, dry place above 0°C ## Application Methods Brush Coating, Spray Coating, Roller Coating ## Construction Precautions ⚠️ 1. Stir thoroughly before use. Dilute with tap water if paint is too thick; do not exceed the specified dilution ratio. 2. Fully remove grease, dust and other contaminants from substrate surfaces prior to construction. 3. Fresh cement walls contain excessive moisture and free alkaline substances which impair film performance and adhesion. Leave to fully dry for 2~3 weeks until moisture content drops below 12% before coating. 4. Construction Conditions: Ambient relative humidity below 85%RH, temperature ≥10°C. ## Note All data provided in this product datasheet are derived from internal laboratory tests for construction design reference only. Actual performance varies subject to different construction environments. This document does not constitute any legally binding warranty or statement from the manufacturer. Contact our technical department for clarification of any uncertainties.