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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.
Key Features
Used as a primer in coating systems for steel structures in marine oil & gas, offshore structures, bridges, wind power, petrochemical, chemical, and construction industries; Offers exceptional anticorrosive performance; Excellent fast-drying allows for short recoating intervals; Features good cutting and excellent welding characteristics.
Recommended Use
Used as a primer in general anticorrosive coating systems for municipal steel structures, petrochemical facilities, bridges, power plants, offshore structures, and other industrial steelwork.
| Technical Specifications | |
| Color | Grey, Red |
| Volume Solids (%) | 60± 2% |
| Specific Gravity | 2.4 kg/L |
| Flash Point | 27 °C ± 2 (Closed Cup) |
| Gloss | Flat |
| Organic Volatiles | 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 | 2.5 | 5.0 |
| Construction Parameters | |
| Application Methods | Spraying: Use airless spraying or conventional spraying |
| Brushing: Recommended for touch-up. | |
| Mix Ratio (by weight) | Component A: Component B = 11: 1 |
| Pot Life (at 23°C) | 8 hours (decreases as temperature rises) |
| Thinner/Cleaner | Special thinner |
| Guidance Data for Airless Spraying | |
| Nozzle Pressure | 15 MPa |
| Nozzle Diameter | 0.38-0.64 mm |
| Thinner Addition | Special thinner, typically 5-15% of the total coating quantity |
| Guidance Data for Conventional Spraying | |
| Nozzle Pressure | 0.3-0.6 MPa |
| Nozzle Diameter | 1.8-2.2 mm |
| Thinner Addition | Special thinner, typically 5-15% of the total coating quantity |
| Brushing and Roller Coating | |
| Thinner Addition | Special thinner, typically 0-5% of total coating quantity |
| Substrate Temperature | ||||||
| -5°C | 0°C | 5°C | 10°C | 23°C | 40°C | |
| Tack Free Time | 7 hours | 90 minutes | 50 minutes | 20 minutes | 10 minutes | 4 minutes |
| Hard Dry Time | 24 hours | 5 hours | 3 hours | 2 hours | 1.5 hours | 40 minutes |
| Full Curing Time | 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 minutes |
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