Rigid Foam Board

Composite Box provides high-quality rigid foam boards. For example, XPS, polyurethane, PET, and PVC foam. They can be used for truck bodies, construction, and motor homes. They are used for structural, thermal insulation, and waterproofing applications.
We offer custom processing in various sizes and densities, providing a one-stop solution. For inquiries, please contact our sales manager.

Features:

Thickness range: 5mm to 300mm
Insulation performance with R-values from 4 to 22
High-strength structural filling
Density: 300–800 kg/m³

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product

XPS foam board

Description:

XPS foam board is a closed-cell rigid foam with excellent waterproof properties. It uses an extruded polystyrene structure. It has good thermal insulation properties and extremely low water absorption, making it suitable for a wide range of applications.

Closed cell content exceeds 99%.
Thermal conductivity: 0.027 W/mK

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PU Insulation Foam Board

Description:

Polyurethane (PU) foam boards offer exceptional thermal insulation properties. They also feature excellent flame resistance and heat resistance. These boards are ideal for applications such as refrigerated vehicles and insulated buildings.

Thermal conductivity: 0.023 W/m·K
Durable and long-lasting

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PET foam core material

Description:

Rigid PET foam boards are made from polyethylene terephthalate (PET). They are recyclable foam materials. These boards are heat-resistant and have excellent mechanical properties, making them an outstanding choice for foam board applications.

Water absorption rate: ≤2%
Density: 40–300 kg/m³
Compressive strength: 1.5–2.5 MPa

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High-density PVC board

Description:

High-density PVC board is made of polyvinyl chloride (PVC) and serves as an excellent structural material, offering superior compression resistance and sound insulation properties. It can replace traditional formwork and plywood.

Thickness: 3–50 mm
Density: 500–1000 kg/m³

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product Catalog

Our Product

FRP Foam sandwich Panels

CFRT Foam sandwich Panels

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info@composite-box.com
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Durability

Long service life

Sturdiness

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FAQ

Rigid foam board is a lightweight, high-strength building material widely used in various fields. Its primary applications include:

Building insulation: Rigid foam boards (such as polystyrene or polyurethane foam boards) offer excellent thermal insulation properties, commonly used as insulation layers for walls, roofs, and floors to effectively reduce energy consumption and provide a warmer environment.
Packaging materials: Due to its cushioning and compression resistance, it is commonly used for transport packaging of electronic products, furniture, and other items to protect them from damage.
Decoration and modeling: In interior design or stage scenery, rigid foam board is easy to cut and carve, making it suitable for creating decorative panels or models.
Cold chain logistics: Used in refrigerated boxes or insulated containers to maintain a low-temperature environment. Used for food and medicine transportation.
Waterproof and sound insulation: Some rigid foam boards have waterproof and sound-absorbing functions and are commonly used in recording studios and street-facing residences.

Rigid foam boards are an ideal choice for construction, packaging, and creative design due to their versatility, light weight, and cost-effectiveness.

The R-value (thermal resistance value) of rigid foam board is a key indicator of its thermal insulation performance, and the specific value varies depending on the type and thickness of the material. The following are the R-value ranges for common rigid foam boards (including PET and PVC):

Extruded polystyrene (XPS): R-value of approximately 5.0 per inch, highly water resistant, suitable for damp environments such as basements.
Polyurethane (PU): Approximately 6.5 R-value per inch, offering both waterproofing and sound insulation properties, with excellent thermal insulation performance.
PET foam board: Approximately 4.0-4.5 R-value per inch, environmentally friendly and recyclable, commonly used in lightweight structures and packaging.
PVC foam board: R-value approximately 3.5–4.0 per inch, corrosion-resistant and easy to process, suitable for signage and decoration.

The higher the R-value, the better the insulation performance. Selection should be based on application requirements, climate conditions, and budget. For example, polyurethane boards are recommended for cold regions, XPS for humid environments, while PET and PVC are more suitable for lightweight or decorative applications. Proper sealing is essential during installation to optimize insulation performance.