Qingdao Wanguo Sanchuan Fiber Technology Co., Ltd
Add to Cart
FRP Gel Coat : Corrosion - Resistant , Lightweight And Durable For Marine
FRP Gel Coat is a specialized thermosetting resin coating designed for fiber-reinforced plastic (FRP) products. It serves as both a decorative and protective layer, offering exceptional resistance to corrosion, UV radiation, and mechanical abrasion. The gel coat forms a durable, glossy surface that enhances the aesthetic appeal of FRP panels while shielding the underlying structural layers from environmental degradation. Key features include:
High corrosion resistance: Withstands exposure to acids, alkalis, salts, and moisture.
Lightweight: Ideal for applications requiring reduced structural weight.
Thermal insulation: Low thermal conductivity minimizes heat transfer.
Easy maintenance: Resists staining and requires minimal upkeep.
The manufacturing of FRP Gel Coat involves precision engineering to ensure optimal performance:
Material Preparation:
Resin selection: Vinyl ester or polyester-based resins with UV stabilizers.
Additives: Thixotropic agents for viscosity control and fillers for enhanced mechanical properties.
Mixing:
Precise blending of resin, additives, and pigments to achieve uniform consistency.
Spraying:
Applied using airless sprayers to ensure even coverage and minimal overspray.
Multiple thin coats are applied for optimal thickness (0.3–0.5 mm).
Curing:
Cured at 18–25°C with controlled humidity (<80%) to prevent defects.
Post-curing may be applied for enhanced hardness.
Finishing:
Sanding and polishing to achieve a smooth, glossy surface.
To ensure maximum performance and longevity:
Surface Preparation: Clean and sand surfaces to remove contaminants and ensure adhesion.
Environmental Control: Maintain 16–30°C and <80% humidity during application.
Mixing: Avoid excessive shear forces to prevent air entrapment.
Curing: Monitor gel time to avoid premature curing or prolonged pot life.
Storage: Keep in cool, dry conditions away from direct sunlight.
| Parameter | Value/Description |
|---|---|
| Thickness | 0.3–0.5 mm (adjustable per application) |
| Density | 1.15–1.25 g/cm³ |
| Tensile Strength | ≥60 MPa |
| Flexural Strength | ≥135 MPa |
| Impact Resistance | ≥70 kJ/m² (Barcol Hardness: 23–35) |
| Thermal Conductivity | 0.23 W/m·K |
| UV Resistance | Passes ASTM G155 (3,000 hours) |
| Chemical Resistance | Resists acids, alkalis, and solvents (ASTM D543) |
FRP Gel Coat is widely utilized across industries for its versatility and durability:
Architecture: Exterior cladding, interior panels, partitions, and decorative features.
Transportation: Refrigerated truck bodies, ship decks, and automotive trim.
Industrial: Chemical storage tanks, cooling towers, and pipeline coatings.
Renewables: Wind turbine nacelles and solar panel mounting systems.
Marine: Boat hulls, docks, and offshore platforms.
