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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 professional China Alkyd Intermediate Paint Manufacturers and Custom Alkyd Intermediate Paint Suppliers, 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.
Basic Features
As an intermediate Paint in alkyd rust preventative systems, it is used on marine surfaces or in slightly to moderately corrosive environments.
Easy to apply
Excellent fast-drying properties,
Requiring minimal substrate surface preparation,
Good corrosion protection.
Recommended Uses
Used as a primer for aluminum and steel structures in suitable alkyd Coating systems. Dry temperature resistant up to 120°C.
Surface Preparation
Cleaning: Abrasive blast to Sa 2 1/2 (ISO 8501-1:1988).
Roughness: Fine to medium using a suitable angular grit (G).
Other Surfaces
For aluminum and galvanized surfaces, degrease and lightly sand or brush sand. For stainless steel, lightly sand or brush sand with a chloride-free, non-metallic abrasive.
Application Conditions
The substrate temperature should 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.
Product Compatibility
Primer: Red lead alkyd primer
Subsequent Paint: Alkyd Midcoat
Topcoat: Alkyd Topcoat
Storage
Must be stored in accordance with national regulations. The recommended storage temperature is 15-25°C. The storage environment should be dry, cool, well-ventilated, and away from heat and ignition sources. The container must be kept tightly closed. At 25°C, the product has a shelf life of at least 12 months.
Packaging
30 kg/drum.
| Technical Specifications | |
| Color | Red |
| Volume Solids (%) | 40% |
| Flash Point | 26℃±2 (Closed Cup) |
| Specific Gravity | 1.6 kg/L |
| Gloss | Matt |
| Volatile Organic Compounds | 400 g/L |
| Recommended Dry Film Thickness | 30-50 μm |
| Adhesion | Grade 1 |
| Flexibility | 1mm |
| Abrasion Resistance | Excellent |
| Solvent Resistance | Good |
| Film thickness and coating rate | |||
| Description | Minimum | Maximum | Typical |
| Dry Film Thickness (μm) | 30 | 50 | 40 |
| Wet Film Thickness (μm) | 75 | 125 | 100 |
| Theoretical Spreading Rate (m²/kg) | 8.3 | 5.0 | 6.2 |
| Construction Parameters |
|
| Application Method | Spraying: Use airless spraying |
| Brushing: Recommended for pre-coating, small-area painting, and touch-up. | |
| Thinner/Cleaner | Special thinner |
| Guidelines for Airless Spraying | |
| Nozzle Pressure | 12-15 MPa |
| Nozzle Orifice | 0.38-0.48 mm (0.015-0.019") |
| Spray Width | 40-80° |
| Thinner Addition Amount | Special thinner, the addition amount is generally 0-5% of the total paint quantity |
| Guidelines for Conventional Spraying | |
| Nozzle Pressure | 0.3-0.6 MPa |
| Nozzle Orifice | 1.8-2.2 mm |
| Thinner Addition Amount | Special thinner, the addition amount is generally 5-15% of the total paint quantity |
| Brushing and Rolling | |
| Thinner Addition Amount | Special thinner, the addition amount is generally 0-5% of the total paint quantity |
| Thinner Addition Amount | Special thinner, the addition amount is generally 5-15% of the total paint quantity |
| Drying Characteristics | |||||
| Substrate Temperature | 0℃ | 5℃ | 10℃ | 23℃ | 40℃ |
| Touch Dry | 1 hour | 30 minutes | 20 minutes | 15 minutes | 10 minutes |
| Hard Dry | 4 hours | 2.5 hours | 2 hours | 1.5 hours | 1 hour |
| Minimum Recoat Time | 4 hours | 3 hours | 2 hours | 1.5 hours | 1 hour |
| Maximum Recoat Time | None | - | - | - | - |
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