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Description
This premium high-performance PMI foam core is a lightweight, closed-cell structural material designed for demanding applications where strength-to-weight ratio is critical. Offering excellent mechanical properties, thermal stability and rigidity, it is ideal as a core material in sandwich constructions and composite laminates.
Supplied in a range of convenient sheet sizes and thicknesses, the foam core is easy to machine, bond and laminate with common composite skins such as fibreglass, carbon fibre and other reinforced plastics. It is widely used in aerospace, marine, automotive, sporting goods and industrial panels where structural integrity, weight saving and long-term durability are essential.
Product Features
- Available thicknesses: 2 mm, 3 mm, 5 mm and 10 mm to suit lightweight skins through to more robust structural panels.
- Sheet length options of 625 mm or 1250 mm, allowing efficient layout for both small components and larger panels.
- Sheet widths of 312 mm or 625 mm to minimise waste and optimise nesting in composite fabrication.
- High-performance PMI (polymethacrylimide) closed-cell foam core offering excellent stiffness and compressive strength.
- Consistently low density, delivering exceptional weight savings compared with solid plastic or metal alternatives.
- Easy to cut, shape and machine using standard workshop tools for precise, repeatable fabrication.
- Compatible with common resin systems used in composite manufacturing, including epoxy, polyester and vinyl ester resins.
Key Features and Benefits
- Outstanding strength-to-weight ratio helps reduce overall component weight without compromising structural performance.
- Closed-cell structure provides excellent resistance to moisture ingress, supporting long service life in demanding environments.
- Good thermal stability and dimensional accuracy help maintain panel flatness and integrity under load and temperature changes.
- Easy handling and workability reduce fabrication time and labour costs during lay-up, bonding and finishing.
- Multiple thickness and sheet size options allow efficient material usage and flexible design of complex composite structures.
- Ideal as a core in sandwich panels, helping to improve stiffness, vibration damping and impact resistance of finished parts.
Specifications
| Specification | Detail |
|---|---|
| Material | High-performance PMI (polymethacrylimide) closed-cell foam core |
| Available thicknesses | 2 mm, 3 mm, 5 mm, 10 mm |
| Sheet length options | 625 mm, 1250 mm |
| Sheet width options | 312 mm, 625 mm |
| Typical use | Structural core in sandwich panels, composite laminates and lightweight constructions |
| Workability | Can be cut, shaped, drilled and bonded using standard composite fabrication techniques |
Applications and Ideal Uses
This PMI foam core is suitable for a wide range of lightweight structural applications across multiple sectors.
- Aerospace interior and secondary structural panels where weight reduction is a priority.
- Marine hulls, decks and bulkheads in performance craft and lightweight pleasure boats.
- Automotive body panels, floor panels and motorsport components requiring high stiffness.
- Wind turbine components, industrial covers and enclosures using composite sandwich construction.
- High-performance sporting equipment such as boards, paddles and frames needing rigidity with minimal mass.
Frequently Asked Questions
Can this PMI foam core be used with epoxy and polyester resins?
Yes, the foam core is compatible with common composite resin systems including epoxy, polyester and vinyl ester resins. Always follow your resin manufacturer’s guidelines for bonding and curing to achieve optimal adhesion and mechanical performance.
How do I cut and shape the foam sheets without damaging them?
The foam can be cut and shaped using standard workshop tools such as sharp knives, fine-toothed saws or CNC equipment. Use light, controlled pressure and support the sheet adequately during cutting to prevent tearing or crushing of the foam cells.
Which thickness should I choose for my application?
Thinner sheets such as 2 mm and 3 mm are suitable for lightweight panels, curved skins and areas with limited build height, while 5 mm and 10 mm cores provide greater stiffness and compressive strength for more demanding or larger structural panels. Your choice should be based on the required stiffness, load conditions and overall panel design.