Why Would You Choose Our Fiberglass Sandwich Panels?
- Our fiberglass sandwich panels feature a smooth, bump- and blemish-free surface and are easy to clean and antibacterial.
- Lightweight yet high-strength, this design uses a high-density foam core that reduces weight by approximately 60% compared to other solid panels and improves your vehicle’s fuel efficiency by 30%.
- Simple and easy to assemble, reducing your labour costs during installation. With multiple assembly methods available, they are convenient and quick to install, making them suitable for a wide range of different work scenarios.
- They offer excellent water resistance, with a water absorption rate of less than 1%, preventing delamination, water penetration, and rot in your fiberglass sandwich panels, thereby extending their service life.
- High-precision CNC machining not only meets your complex customisation requirements but also reduces the dimensional tolerance of the fiberglass sandwich panels to ±0.1mm.
Your Trusted Fiberglass Sandwich Panels Manufacturer
With decades of experience in manufacturing fiberglass sandwich panels, our delamination-resistant, weather-resistant, UV-resistant and lightweight technologies far exceed industry standards. Our fiberglass sandwich panels remain free of delamination over the long term, with a service life of more than 10 years outdoors. Furthermore, the use of a closed-cell structure and seamless lamination technology ensures that the fiberglass sandwich panels you purchase offer exceptional waterproofing and corrosion resistance. fiberglass sandwich panels are suitable for use in cold stores, motorhomes, transport trailers, shipping containers and portable buildings.
We utilize automated spraying equipment and an automated adhesive metering system to control the adhesive application rate between 400–800 g/m², with specific adjustments made according to the core material; adhesive application uniformity is maintained within ±5%. Furthermore, we employ high-temperature hot-press lamination technology. Whilst cold-pressing is less costly, it typically results in lower adhesive strength. Therefore, we utilize the hot-press process to manufacture your required fiberglass sandwich panels. We generally apply a pressure of approximately 0.8 MPa and hot-press for 15–70 minutes to eliminate air bubbles and ensure optimal bond strength.
Fiberglass Sandwich Panels by Core Material
As a specialist manufacturer of fiberglass sandwich panels, we offer a wide range of customised solutions to meet your diverse requirements.

Polyurethane sandwich panels with exceptional thermal insulation properties and waterproof and moisture-resistant characteristics.

PVC sandwich panels are a type of composite panel that offers excellent corrosion resistance, is lightweight and has outstanding waterproofing properties.

Fiberglass Honeycomb Panels are ultra-lightweight composite panels featuring a honeycomb structure; due to their excellent strength-to-weight ratio, they are widely used in the transport sector.

XPS Foam Sandwich Panels are composite panels with an ultra-low water absorption rate (≤1%) and exceptional compressive strength of 700 kPa; they do not swell due to freezing.

Plywood sandwich panels, composite panels made by cross-laminating multiple layers of wood veneer.

PET foam sandwich panels using eco-friendly, high-performance polyethene terephthalate (PET) as the core material.
Why Do You Need Our Fiberglass Sandwich Panels?
Our fiberglass sandwich panels are exported to over 60 countries worldwide because our products offer numerous advantages.

Fiberglass sandwich panels are 55% lighter than steel sheets and 25% lighter than aluminium. This reduces logistics costs.

The I-beam structure increases bending strength by 30% and provides greater impact resistance, making it less prone to deformation.

Depending on the core material used, fiberglass sandwich panels can achieve a fire resistance rating of Class B1 (difficult to ignite).

fiberglass sandwich panels can be adapted to suit a variety of project requirements and meet a range of needs.

It can be combined with various sound-absorbing core materials and supports customised multi-layer structures, thereby enhancing user comfort.

Fiberglass sandwich panels offer excellent thermal insulation properties, helping to reduce energy consumption in cold stores and improve temperature control.

Fiberglass sandwich panels have a water absorption rate of less than 1% and offer good resistance to acids and alkalis.

Fiberglass sandwich panels have a service life of over 20 years and are designed to resist yellowing and chalking.
Corrosion-Resistant FRP Sandwich Panels
The fiberglass sandwich panels we manufacture for you offer excellent water resistance and corrosion resistance. To protect the surface, we typically apply a gel coat layer with a thickness of 0.3–0.8 mm for you, which remains stable in acidic and alkaline environments with a pH range of 2–12. Furthermore, by utilising waterproof resins and a hydrolysis-resistant design, we have reduced water permeability by approximately 40% compared to standard FRP panels, whilst increasing chemical resistance by two to three times.


Waterproofing Fiberglass Sandwich Panels
To prevent water from penetrating the internal structure of our fiberglass sandwich panels for you, we not only use high-quality fiberglass sheets (FRP panels) but also incorporate closed-cell core materials such as PU foam, XPS foam, and PVC foam for you. This ensures that the fiberglass sandwich panels we supply will not suffer from mould or swelling. In addition, we employ edge-sealing techniques such as PU sealant application, hot pressing, and precision CNC cutting.
Non-laminated Fiberglass Sandwich Panels
Our fiberglass sandwich panels are characterised by high strength and resistance to delamination. This is primarily due to our use of high-quality PU adhesives, epoxy resins and unsaturated resins. This high-performance adhesive system achieves a shear strength of 1.5 MPa and a peel strength of 10 N/mm, meeting high industry standards, whilst offering temperature resistance from -40°C to 120°C. In addition to using high-performance adhesives, we employ a precise adhesive application process for your fiberglass sandwich panels.

Resource

A comprehensive company introduction allows you to quickly understand our factory. Full-category Fiberglass Sandwich sheets descriptions allow you to understand our products in detail.

Comprehensive certification system, ASTM, UL94, FDA, TDS, MSDS, and test reports, etc. Please contact us if you have any questions.

We have thoughtfully prepared videos of the production and quality inspection of Fiberglass corrugated panels for you to watch.
Applications of Fiberglass Sandwich Panels in Various Industries
Thanks to their inherent advantages and exceptional versatility, fiberglass sandwich panels are widely used in applications such as frozen food storage, cold-chain transport, motorhomes and shipping containers.

Fiberglass sandwich panels utilise fiberglass sheets (FRP panels) combined with high-performance insulation cores such as PU or XPS. They offer a significant 60% improvement in thermal insulation performance, saving you approximately 25% in energy consumption annually. Furthermore, the fiberglass sandwich panels we supply are capable of withstanding repeated thermal cycling in environments as low as -40°C without cracking or shrinking. Compared to the severe thermal bridging inherent in metal panels and the low-temperature brittleness of standard plastic panels, fiberglass sandwich panels are your optimal choice.

In the transport industry, every kilogram of weight affects your costs. Using fiberglass sandwich panels can reduce the total vehicle weight by 20–30% and fuel consumption by 4–7%, thereby increasing your profit per journey. Their sandwich structure offers a bending strength of 150–200 MPa and greater impact resistance than aluminium panels, helping to reduce your maintenance costs. Compared to your previous metal bodywork, fiberglass sandwich panels are chemically resistant and corrosion-resistant, allowing you to make a one-off investment that lasts longer.

Many motorhome and RV manufacturers opt for fiberglass sandwich panels, primarily due to their excellent thermal insulation properties and lightweight nature. Compared to traditional metal panels, the core material used in fiberglass sandwich panels has a thermal conductivity of just 0.02 W/m·K, keeping your motorhome cooler in summer and warmer in winter, reducing energy consumption by around 15% and significantly enhancing comfort.
Type of FRP Sandwich Panels
As technology continues to evolve, we manufacture two different types of sandwich panels: FRP (fiberglass reinforced plastic) panels and CFRT (continuous fibre-reinforced thermoplastic) panels. You can customize the sandwich panels to suit your specific requirements.
Different core materials are selected to meet varying performance requirements. In addition to a range of FRP panels and fiberglass sheets, fiberglass sandwich panels also offer a choice of core materials for you. The core materials available for fiberglass sandwich panels include: PU foam, XPS foam, PET foam, PVC foam, plywood and honeycomb structures.
We can supply a range of CFRT sandwich panels to meet your specific requirements. The structure of CFRT sandwich panels consists of a CFRT outer layer and a core. The cores can be categorised as follows: foam cores (PU foam, XPS foam, PVC foam and PET foam), honeycomb cores (PP honeycomb and aluminium honeycomb), and wood-based cores (plywood). Wood-based cores are gradually being replaced by foam and PET cores.
Find out More About Our Company
No more worries about unstable fiberglass sandwich panels! What makes our fiberglass sandwich panels different?
- Specifications
- Technical Data Sheet
Below are the basic specifications and dimensions of our fiberglass sandwich panels. Thank you for reviewing this information. Please do not hesitate to contact us if you have any questions regarding our products.
| Category | Specifications |
|---|---|
| Color | White, Grey, Black, Yellow, Red, Blue, Green, Customised |
| Coating Material | Gel-coat |
| Facing Material | FRP(fiberglass reinforced plastic) Sheet |
| Resin Type | Unsaturated Polyester Resin (UP Resin)/ Phenolic Resin/ Epoxy Resin |
| Fiber Type | Chopped strand mat (CSM)/ Woven roving/ Multi-axis fabric/ Surface mat |
| Core Material | XPS(Extruded Polystyrene) Foam PVC(Polyvinyl Chloride) Foam PU(Polyurethane) Foamn PET(Polyethylene Terephthalate) Foam EPP(Expanded Polypropylene) Foam PMI(polymethacrylimide)Foam PP(polypropylene) Honeycomb |
| Forming Method | Customized |
| Width | 30mm-320mm |
| Thickness | 5-130mm |
| Length | Customized |
| Package | Customized |
| Label | Customized |
This is the technical specification sheet for our 17mm fibreglass sandwich panels. The specifications vary depending on the specific type of fibreglass sandwich panel; please do not hesitate to contact us if you require further information.
| Item | Typical Value | Unit | Test method |
| Thickness | 17 | mm | International Standards |
| Weight | 7650 | g/㎡ | International Standards |
| Glass content | 35-45 | % | International Standards |
| Flexural Strength | 290 | MPa | International Standards |
| Flexural Modulus | 5–12 | GPa | International Standards |
| Compressive Strength | 2 MPa | MPa | International Standards |
| Tensile Strength | 150 | MPa | GB/T 1448-2005 |
| Shear strength | 78.8 | MPa | GB/T 1450.2-2005 |
| Longitudinal bending strength | 256 | MPa | GB/T 1449-2005 |
| Longitudinal impact toughness | 106 | kj/㎡ | GB/T 1451-2005 |
| Peel Strength | ≥ 2.5 | N/mm | International Standards |
| Shear Strength | 1 | MPa | International Standards |
| Heat-Resistant Temperature | -50-140 | ℃ | International Standards |
| Anti-Ultraviolet Rate | 98-100 | % | International Standards |
| Viscosity | 250-350 | cps | International Standards |
| Thermal Conductivity | 0.021 | W/m·K | International Standards |
| Water Absorption | < 1 | % | International Standards |
| H.D.T | 75 | ℃ | International Standards |
| Light transmission | ≥90 | % | International Standards |
| Sound Insulation | 25 | dB | International Standards |
We offer a wide range of options, including XPS foam, PVC foam, PU foam, PET foam, EPP foam, PMI foam and PP honeycomb. Different core materials are suitable for different applications. You can customise your order to suit your specific requirements.
We use high-performance adhesives with a temperature resistance range of -40°C to 120°C. By employing automated spraying and a metered adhesive-dispensing system, we ensure uniform adhesive application with a tolerance of ±5%. Of particular importance are our high-pressure lamination process and vacuum lamination technology. These methods effectively remove air pockets, allowing the resin to penetrate fully, thereby ensuring a 30% increase in the service life of your fiberglass sandwich panels.
The fiberglass sandwich panels we manufacture for you offer excellent thermal insulation, particularly those with polyurethane (PU) or extruded polystyrene (XPS) cores. With a thermal conductivity of around 0.02 W/m·K, they are widely used in cold stores, refrigerated lorries and motorhomes.
Yes, that’s no problem at all. We offer a one-stop solution. With our dedicated design team, we can produce CAD drawings tailored to your requirements. You can customise different sandwich panels to suit your specific application. In addition, the fiberglass sheets and FRP panels we manufacture can also be customised to meet your needs.
Our fiberglass sandwich panels are suitable for use in refrigerated lorries, cold stores, motorhomes and campervans, hospitals, food processing plants, as well as ships and specialised vehicles.
With over 10 years of export experience, we can provide you with ISO, ASTM, SGS, EN and RoHS certificates. If necessary, we can also arrange for certain certificates to be issued to meet your local requirements.











