Specification
- Thickness: 0.7-5.0mm.
- Density: 1.8 g/cm³ to 2.0 g/cm³.
- Flame retardant: B1, B2.
- Tensile strength: 200-600 MPa (29,000 to 87,000 psi).
- Flexural strength: 400-600 MPa (58,000 to 87,000 psi).
- Compression strength: Approximately 200 MPa (29,000 psi).
- Heat resistance: 80°C to 120°C (176°F to 248°F).
- Coefficient of thermal expansion: 10-15 × 10⁻⁶/°C.
Description
- The glass fiber is directly exposed on the surface, creating a natural “texture” rather than the smooth, mirror-like finish of gel-coated FRP.
- Surfaces without gel coats are generally rougher, with visible fiber or resin grains, less flatness, and a slightly uneven feel.
- The color is primarily determined by the structural resin itself.
Applications
Gel-coated FRP sheets are used for their lower cost or when the application environment requires less stringent surface quality and appearance.
- Structural core surface layer: as a layer in sandwich panels (foam, honeycomb).
- Building materials: roof substructure, corrosion-resistant wall backing.