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.
Basic Characteristics
Excellent water and oil resistance;
Good chemical resistance and rust prevention;
Excellent adhesion, impact resistance, and abrasion resistance;
Excellent resistance to cathodic protection;
A dry film thickness of up to 500µm can be achieved by airless spray application.
Recommended Applications
This paint is suitable for long-term anti-corrosion Coatings on ship bottoms, ballast tanks, dock piles, offshore oil rigs, water gates, mine supports, and pipelines.
Surface Preparation
Steel with scale: Sandblast to Sa2.5 or grind to St3 with a spring-loaded abrasive wheel.
Shop-primed steel: Lightly sandblast or grind to St3 with a spring-loaded abrasive wheel.
Welded, flame-cut, or pyrotechnically corrected burnt areas: Remove weld slag and spatter, smoothen, and then grind to St3 with a spring-loaded abrasive wheel.
Roughness: Use an appropriate abrasive (steel shot/angular sand) to a roughness of 40-85 microns.
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 often required in confined areas to ensure proper drying.
When overcoating, the paint surface should be dry and free of contamination.
Product Compatibility
Recommended application: 1-2 Paints, achieving a single Paint dry film thickness of 250µm. Primer: Glass flake epoxy paint
Suitable finishes: 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. The storage environment should be dry and well-ventilated. The packaging container must be kept tightly closed.
Shelf life: 12 months at room temperature.
Packaging
Component A: 18 kg (base), Component B (curing agent): 4 kg (hardener).
| Technical Specifications | |
| Color | Various Colors |
| Volume Solids (%) | 80±2% |
| Specific Gravity | 1.6 kg/L |
| Flash Point | 25℃±2 (Closed Cup) |
| Gloss | Satin |
| Recommended Dry Film Thickness | 150-500 μm |
| Solvent Resistance | Excellent |
| Water Resistance | Excellent |
| Abrasion Resistance | Excellent |
| Chemical Resistance | Excellent |
| Cathodic Disbondment Resistance | Good |
| Film thickness and coating rate | |||
| Description | Minimum | Maximum | Typical |
| Dry Film Thickness (μm) | 150 | 500 | 250 |
| Wet Film Thickness (μm) | 190 | 625 | 320 |
| Theoretical Spreading Rate (m²/kg) | 3.3 | 1.0 | 2.0 |
| Construction Parameters |
|
| Application Method | Spraying: Use airless spraying or conventional spraying |
| Brushing: Recommended for touch-up. | |
| Mixing Ratio (by weight) | Component A: Component B = 4.5: 1 |
| Induction Time (23℃) | 30 minutes |
| Pot Life (23℃) | 8 hours (decreases as temperature rises) |
| Thinner/Cleaner | Special thinner |
| Guidelines for Airless Spraying | |
| Nozzle Pressure | 20-30 MPa |
| Nozzle Orifice | 0.4-0.5 mm |
| Thinner Addition Amount | Special thinner, the addition amount is generally 0-5% of the total paint quantity |
| Guidelines for Conventional Spraying | |
| Nozzle Pressure | 0.2-0.4 MPa |
| Nozzle Orifice | 2-3 mm |
| Thinner Addition Amount | Special thinner, the addition amount is generally 0-10% of the total paint quantity |
| Brushing and Rolling | |
| Thinner Addition Amount | Special thinner, the addition amount is generally 0-3% of the total paint quantity |
| Drying Characteristics | |||
| Substrate Temperature | 5℃ | 20℃ | 30℃ |
| Touch Dry | 8 hours | 4 hours | 2 hours |
| Hard Dry | 48 hours | 24 hours | 16 hours |
| Full Cure | 15 days | 7 days | 5 days |
| Minimum Recoat Time | 48 hours | 24 hours | 16 hours |
| Maximum Recoat Time | 15 days | 7 days | 3 days |



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