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PET Foam Core

Polyethylene Terephthalate Structural Core

AIREX T90 PET foam core, fire retardant core, composite core, structural core

3A Composites' T90 & T92 structural foam is compatible with all the major resin systems. PET foam is styrene resistant in the infusion process.


PET does not out-gas and has a stable service temperature. T90 has excellent Flame, Smoke & Toxicity (FST) properties making it suitable for various transportation, Military, and Marine applications.


The T92 is ideal for small decks, cabin sides, bulkheads, and internal components. The T90 is more suited for marine stringer systems, high-density inserts, and marine transoms.

  • Compatible with all major resin systems

  • Excellent thermal stability

  • Closed Cell / Low Absorbsion

  • Thermoformable

  • High fire resistance properties

  • Densities as low as 4.1lb/cu. ft (60kg/cu. m) & as high as 13lb/cu. ft (210kg/cu. m)

The featured materials are what Core Composites commonly distributes. We are happy to potentially assist in finding a different product or to point you in the right direction based on your needs and our ability to accommodate.

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