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Multi-Use Foam Series

LAST-A-FOAM® FR-7100 Series

This uniform polyurethane foam board is easily finished or painted for low-cost core applications, hand-carved models, prototypes, CNC-machined topographical maps, industrial patterns, and composite layup tools below 200ºF. This series is non-abrasive and can be machined with standard high-speed steel (HSS) cutting tools. It can also be cut cleanly with water jets and traditional wood-carving tools. Modeling foam is available in densities of 4 to 40 lbs. per cubic ft. as sheet stock as well as large-size blocks. The FR-7100 Series is ideal for applications that call for an economical, versatile and stable stock material.

FR-7100 boards can be used in low and high densities. The ability to combine high and low densities in one layup makes it an ideal material for composite layups. The material contains no mold-release agents to inhibit bonding.


These products are formulated to meet the demands of composite boat builders at competitive prices for above water line or marine usage: freezer insulation, fish boxes, interiors, seat mounting pads, steering wheel mountings, and decks.

Modeling and Prototype Foam

The FR-7100 material is suitable for hand-carved models, CNC-machined topographical maps, prototypes, and industrial patterns.

Tooling and Molds

LAST-A-FOAM® FR-7100 products have been used successfully in modeling foam tooling applications for many years. This material meets the needs of mold and toolmakers because it is stress-free, easy to machine, and uniform in density throughout the block. For applications requiring higher strength, greater detail, or increased heat and pressure resistance at process temperature, a density of 20 lb. per cubic foot is usually the best choice. Typical uses include composite layup tools, drape-forming tools, and vacuum-form tools.


Our FR-7100 tooling board is a very uniform board that is easily finished or painted for low-cost core applications as well as use for composite layup tools and for industrial patterns. It is recommended that you do a rough cut first, leaving 1-3 mm of material for finishing.  Use caution at edges and tight corners to avoid chipping at the start of a new pathway and when exiting the foam.  See our Tooling & Molds User Guide for more information like roughing speed, finishing speed, and other machining information.

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  • Fine cell structure supports very smooth finishes
  • Closed-cell foam does not absorb water or moisture
  • Easily painted and bonded
  • Economical and versatile
  • Dimensionally stable – will not warp, twist or bow
  • Grain-free surface
  • Easily shaped with a variety of cutting processes
  • Max use temperature of 220°F (104°C)
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  • Proofing NC/CNC machine programs
  • Prototype models
  • Composite core
  • Marine: Interior, mounting pads, heads, galleys, and more
  • Solar: Panel backing and support, parabolic mirror farms
  • Custom parts
  • Layup tools
  • Drape-forming tools
  • Vacuum-form tools
  • Dielectric: radome and antenna


Products Density (lbs/ft3) Height (in) Width (in) Length (in) Request a Quote
FR-7104 4 24 48 96 Quote »
FR-7106 6 24 48 96 Quote »
FR-7107 7 24 48 96 Quote »
FR-7108 8 24 48 96 Quote »
FR-7110 10 24 48 96 Quote »
FR-7110 10 25 18 100 Quote »
FR-7112 12 25 48 96 Quote »
FR-7115 15 25 48 96 Quote »
FR-7118 18 18 48 96 Quote »
FR-7120 20 18 48 96 Quote »
FR-7130 30 12 48 100 Quote »
FR-7135 35 12 24 96 Quote »
FR-7140 40 12 26 100 Quote »
Products Density (kg/m3) Height (cm) Width (cm) Length (cm) Request a Quote
FR-7104 64 61 122 244 Quote »
FR-7106 96 61 122 244 Quote »
FR-7107 112 61 122 244 Quote »
FR-7108 128 61 122 244 Quote »
FR-7110 160 61 122 244 Quote »
FR-7110 160 64 46 254 Quote »
FR-7112 192 64 122 244 Quote »
FR-7115 240 64 122 244 Quote »
FR-7118 288 46 122 244 Quote »
FR-7120 320 46 122 244 Quote »
FR-7130 481 30 122 254 Quote »
FR-7135 561 30 61 244 Quote »
FR-7140 641 30 66 254 Quote »

Shown are maximum standard stock based on density. Custom sizes are available. Cut sizes are available from 0.125 inches (3.175mm) up to standard stock heights as listed above

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