Item# W10-00073
Ref# 100547
Last-A-Foam® FR-3720, Closed-Cell Rigid Polyurethane Foam for Aerospace, Flame-Retardant, 20 lbs/ft³, (4 in x 48 in x 96 in)
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Dimensions
Thickness
4 in
Width
48 in
Length
96 in
Description
Last-A-Foam® FR-3720 is a flame-retardant rigid polyurethane foam with a closed-cell structure developed for aerospace-grade composite core, tooling, modeling, and industrial fabrication. The 4-inch-thick, 48 × 96-inch board provides substantial machining depth for larger tools and three-dimensional components while retaining the favorable strength-to-weight ratio of 20 lb/ft³ polyurethane foam.
Size: 4 in × 48 in × 96 in | Density: 20 lb/ft³ | Designation: FR-3720
Highlights
- 4 inch thick rigid polyurethane board for substantial machining and fabrication requirements
- 20 lb/ft³ closed-cell foam provides strength without the weight of solid tooling materials
- Typical compressive strength of 1,250 psi at 75°F
- Cross-linked resin structure supports a high strength-to-weight ratio
- Flame-retardant formulation suited to aerospace and transportation applications
- Low water absorption helps preserve shape and dimensional accuracy
- Easy to cut, shape, route, sand, and machine into complex geometries
- Resistant to many chemicals, solvents, and fungal growth
- Maximum use temperature: 260°F (127°C)
Typical Applications
- Large molds, master patterns, and thick-section tooling
- Machined composite core components with deep contours or profiles
- Aerospace sandwich structures and reinforced interior components
- Prototype assemblies and dimensional models
- Vacuum-form dies and industrial forming tools
- Thick jigs, fixtures, and manufacturing supports
- Impact-absorbing and fire-insulating structures for specialized transport systems
Details
Brand
Last-A-Foam®
Grade
Chemical Resistant, Flame Retardant, High Strength, VOC Free
Density
20 lbs/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.