Item# W10-00074
Ref# 104761
Last-A-Foam® FR-3740, Closed-Cell Rigid Polyurethane Foam for Aerospace, Flame-Retardant, 40 lbs/ft³, (0.5 in x 48 in x 96 in)
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Dimensions
Thickness
0.5 in
Width
48 in
Length
96 in
Description
Last-A-Foam® FR-3740 is a high-density, closed-cell rigid polyurethane foam sheet offering exceptional mechanical strength in a lightweight, machinable material. With a density of 40 lb/ft³, this natural 0.5-inch-thick, 48 × 96-inch sheet is well suited to thin structural core sections, precision tooling, machined inserts, closeouts, and other applications where strength and dimensional stability are priorities.
Size: 0.5 in × 48 in × 96 in | Density: 40 lb/ft³ | Color: Natural | Designation: FR-3740
Highlights
-
- High-density polyurethane foam with a rigid, closed-cell construction
- Thin 0.5 inch sheet provides a broad 48 × 96 in working surface
- 40 lb/ft³ density delivers high mechanical and load-bearing capability
- Typical compressive strength of 4,500 psi at 75°F
- Flame-retardant material for aerospace, composite, and industrial applications
- Low water absorption supports stable dimensions in changing environments
- Machines cleanly for precision profiles, inserts, closeouts, and fabricated parts
- Cross-linked resin provides high strength relative to material weight
- Maximum use temperature: 260°F (127°C)
Typical Applications
- Thin aerospace structural core sections and panel closeouts
- Precision-machined inserts and reinforcement components
- Polyurethane foam sheet for tooling, templates, and fixtures
- Composite sandwich panels requiring higher-density core material
- Prototype parts and dimensional models
- Machined components requiring high compressive strength with reduced weight
- Fire- and impact-insulation components for specialized transport packaging
Details
Brand
Last-A-Foam®
Grade
Chemical Resistant, Flame Retardant, High Strength, VOC Free
Density
40 lb/ft³
Technical Guides & Data Sheets
California Residents See Prop 65 Warnings
Warning
Curbell Plastics, Inc. sells certain products that can expose you to chemicals listed on the Proposition 65 Chemical List that can be found at www.p65warnings.ca.gov/chemicals, which are known to the state of California to cause cancer and/or reproductive harm. For more information, go to www.P65Warnings.ca.gov. If you need information regarding Proposition 65 for a specific product, please indicate so on your order form.