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Fiberglass PET sandwich panels with an added energy-absorbing layer (LWRT) are composite structural panels that combine high strength, lightweight construction, and multifunctionality. Based on a traditional fiberglass reinforced plastic (GRP) + PET foam structure, this panel incorporates an LWRT (Lightweight Reinforced Thermoplastic) energy-absorbing layer, significantly improving the structure’s impact resistance, sound insulation, and durability.
Specifications
- Thickness: 30mm (Customizable: 20-120mm).
- Length: ≤12m.
- Width: ≤3.2m.
- Structure: Facing + Energy absorbing Layer + Core.
- Facing: 2.0mm Glecoat GRP sheet. (Customizable: 0.7-5.0mm)
- Energy-absorbing layer: LWRT (Lightweight Reinforced Thermoplastic) sheet.
- Core: PET (Polyethylene terephthalate) foam. (Density: 150kg/m³).
- Area Weight: 11.20kg/㎡.
Description
Applications
Suitable for building off-road trailers, expedition trucks, and truck campers designed for harsh environments.
Structural Diagram
- Gel Coat GRP Layer
☑ Made from glass fiber reinforced resin, it features a smooth surface. Glossy or matte gel coat options are available upon request.
☑ It offers excellent UV, weather, and corrosion resistance.
☑ Customizable colors and surface textures enhance both appearance and durability.
- Recycled PET Foam Core
☑ The closed-cell design provides excellent waterproof, moisture-proof, and thermal insulation properties.
☑ Made from recycled PET, it is environmentally friendly.
☑ High compressive strength and excellent dimensional stability provide a stable support structure for the panels.
- Energy-absorbing layer LWRT
It consists of a polypropylene (PP) matrix and glass fiber reinforcement. It offers high strength, lightweight, excellent sound insulation and absorption, flame retardancy, and is environmentally friendly and recyclable. Added between the core and facing, it absorbs energy from external impacts and enhances the strength of the composite panel.