Item# W10-00071
Ref# 100622
Last-A-Foam® FR-3720, Closed-Cell Rigid Polyurethane Foam for Aerospace, Flame-Retardant, 20 lbs/ft³, (2 in x 48 in x 96 in)
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Dimensions
Thickness
2 in
Width
48 in
Length
96 in
Description
Last-A-Foam® FR-3720 is a CFC-free, closed-cell, flame-retardant rigid polyurethane foam board engineered for aerospace, composite core, tooling, and structural applications. At 20 lb/ft³, FR-3720 combines high mechanical strength with clean machinability, while this 2-inch-thick, 48 × 96-inch sheet provides a large working area for panel fabrication, patterns, and CNC-machined components.
Size: 2 in × 48 in × 96 in | Density: 20 lb/ft³ | Color: Natural | Designation: FR-3720
Highlights
- Rigid, closed-cell polyurethane foam with flame-retardant properties
- 20 lb/ft³ density balances strength, weight, and machinability
- Large 48 × 96 in foam board format for composite panels and tooling
- Typical compressive strength of 1,250 psi at 75°F
- Low water absorption helps maintain dimensional stability during service
- High strength-to-weight ratio from cross-linked resin structure
- Machines cleanly for routed profiles, contours, patterns, and complex shapes
- Resistant to many chemicals and solvents and to fungal growth
- Maximum use temperature: 260°F (127°C)
Typical Applications
- Aerospace composite core and sandwich panel construction
- Large-format polyurethane tooling board and CNC-machined patterns
- Aircraft interior panel components and structural closeouts
- Vacuum-form dies, molds, master models, and design prototypes
- Jigs, fixtures, and manufacturing aids requiring dimensional stability
- Impact- and fire-insulation liners for transport and packaging systems
- Structural reinforcement and load-bearing foam components within recommended service conditions
Details
Brand
Last-A-Foam®
Grade
Chemical Resistant, Flame Retardant, High Strength, VOC Free
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.