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Rigid Foams

LAST-A-FOAM® rigid CFC-free polyurethane foam boards and products are cost-effective, versatile, strong and durable. They are manufactured using our unique chemical formulas to be exceptionally uniform and consistent in all physical properties. You will find a wide spectrum of formulations in multiple densities.


Our high-density, flame-retardant, marine and rigid polyurethane foams are also available in a broad range of physical forms, including rigid and hard foam boards and blocks. This allows us to best align HDU foam properties with your specific needs – and help you contain material and manufacturing costs.

Use our Product Finder tool to find out what product is suitable for your specific application.


Tough BMS 8-133-qualified foam cuts crisply for machining complex shapes. It also serves as impact- and fire-insulation liners for hazardous material, and as human bone-test media.

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FR-3800 FST

This rigid foam core material satisfies fire, smoke and toxicity (FST), and heat release requirements for aerospace applications.

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These foam boards are ideal for composite panel cores and other structures where compound-curved surfaces or other details can be made with common thermoforming methods.

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Tough, grain-free machinable boards for styling, design and master models, composite/layout tool masters, and pattern making. An optimal wood alternative for outdoor signage and displays.

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These foam boards are ideal for precision tooling applications, or as modeling foam. Advanced microcell technology creates a grain-free, ultra smooth exterior for painted finishes, significantly reducing process time.

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Supports prepreg composite layout tooling for high-temperature applications up to 400F. Ideal for prototype machining, vacuum forming, pattern making and limited-run tooling.

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Flame-retardant foam for aircraft composite core withstands processing up to 250°F. Superb for models and design prototypes, vacuum-form dies and mold patterns, honeycomb edge closeout.

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Uniform foam is easily finished or painted for low-cost core applications, hand-carved models, prototypes, CNC-machined topographical maps, composite layup tools, industrial patterns.

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Hydrostatic pressure-resistant foams provide buoyancy for underwater flotation applications without liquid penetration. They are also used as core material in resin-transfer molding.

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High-density urethane cellular foam combines high compressive strength with little deflection and extraordinary thermal insulation to support heavy structural loads. Ideal for construction uses.

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Structural strength with moisture resistance offers boat designers a top-quality, non-decaying wood alternative that is fully compatible with fiberglass-laminating production methods.

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