Founded in 1997, Zhejiang Bolei Coatings Co., Ltd. is a subsidiary of Bolei Industrial Group, with multiple subsidiaries engaged in coatings manufacturing, construction services, new material development, and international trade.
As a professional paint manufacturer based in China, we specialize in anti-corrosion coatings, fireproof coatings, emulsion paints, epoxy floor paints, and JS waterproof paints, widely applied in both industrial and construction sectors.
With advanced production facilities, a strict quality control system, and a stable raw material supply chain, we deliver high-quality and cost-competitive coating products and engineering solutions to our clients worldwide.
Recommended Applications
As a primer in a general-purpose anti-rust Coating system, it is suitable for use in municipal steel structures, petrochemical facilities, bridges, power plants, offshore structures, and other industrial plant steel structures.
Basic Properties
As a primer in a supporting Coating system, it is suitable for steel structures in the offshore oil and gas, marine steel structures, bridges, wind power, petroleum, chemical, and construction industries.
Excellent corrosion protection.
Quick-drying properties allow for quick overcoating.
Excellent cutting and welding properties.
Surface Preparation
All surfaces to be painted must be clean, dry, and free of oil and other contaminants. Surfaces must be assessed and prepared in accordance with international standards ISO 8504. Cleanliness Grade: Abrasive blasting to Sa 2.5 (ISO 8501-1:2007).
Roughness: Fine to medium, 40-85 microns, using a suitable abrasive (steel shot/angular sand) in accordance with the international standard ISO 8503-2.
Application Conditions
Substrate temperature must not fall below -5°C and must be at least 3°C above the air dew point. Temperature and relative humidity should be measured near the substrate. Good ventilation is generally required in confined areas to ensure proper drying.
When applying the secondary Paint, the paint surface must be dry and free of contamination.
Product Compatibility
Primer: Epoxy zinc primer
Recommended subsequent Coatings: Epoxy high-build paint, epoxy micaceous iron paint, chlorinated rubber paint, vinyl chloride paint, polyurethane Topcoat, acrylic paint, polysiloxane Topcoat, fluorocarbon Topcoat, etc.
Storage
Must be stored in accordance with national regulations. The recommended storage temperature is 15-25°C. Store in a dry and well-ventilated environment. Keep the container tightly closed. Shelf life: 12 months at room temperature.
Packaging
Part A: 30 kg (base), Part B: 3 kg (curing agent).
| Technical Specifications | |
| Color | Gray, Red |
| Volume Solids (%) | 60± 2% |
| Specific Gravity | 2.3 kg/L |
| Flash Point | 27°C ± 2 (Closed Cup) |
| Gloss | Flat |
| Volatile Organic Compounds | 340 g/L |
| Recommended Dry Film Thickness | 25-100 μm |
| Water Resistance | Excellent |
| Abrasion Resistance | Very Good |
| Solvent Resistance | Excellent |
| Film thickness and coating rate | |||
| Minimum | Maximum | Typical | |
| Dry Film Thickness (μm) | 25 | 100 | 50 |
| Wet Film Thickness (μm) | 45 | 165 | 85 |
| Theoretical Spreading Rate (m²/kg) | 10.5 | 2.6 | 5.2 |
| Construction Parameters | |
| Application Method | Spray: Airless spray or conventional spray |
| Brush: Recommended for repair | |
| Mixing Ratio (by weight) | Component A: Component B = 10: 1 |
| Pot Life at 23°C | 8 hours (decreases as temperature rises) |
| Thinner/Cleaner | Special thinner |
| Guidelines for Airless Spray | |
| Nozzle Pressure | 15 MPa |
| Nozzle Orifice | 0.38-0.64 mm |
| Thinner Addition | Special thinner, generally 5-15% of total paint volume |
| Guidelines for Conventional Spray | |
| Nozzle Pressure | 0.3-0.6 MPa |
| Nozzle Orifice | 1.8-2.2 mm |
| Thinner Addition | Special thinner, generally 5-15% of total paint volume |
| Brush and Roller Application | |
| Thinner Addition | Special thinner, generally 0-5% of total paint volume |
| Drying Characteristics | ||||||
| Substrate Temperature | -5°C | 0°C | 5°C | 10°C | 23°C | 40°C |
| Touch Dry | 7 hours | 90 mins | 50 mins | 20 mins | 10 mins | 4 mins |
| Hard Dry | 24 hours | 5 hours | 3 hours | 2 hours | 1.5 hours | 40 mins |
| Full Cure | 21 days | 15 days | 10 days | 7 days | 5 days | 2 days |
| Minimum Recoat Time | 24 hours | 5 hours | 3 hours | 2 hours | 1.5 hours | 40 mins |



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