Item# W10-00064
Last-A-Foam® FR-3700 Performance Core Series, Closed Cell Rigid Polyurethane Foam, Flame Retardant
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Description
Last-A-Foam® FR-3700 Performance Core Series is a CFC-free, closed-cell, flame-retardant rigid polyurethane foam. It offers a high strength-to-weight ratio from its cellular structure and cross-linked resin, with low water absorption and clean machinability. This series is manufactured by General Plastics and is available in a wide range of densities for aerospace, industrial, and other demanding applications.
Available in densities from 3 to 40 lb/ft³, with thicknesses from 0.125 in up to each grade’s standard height.
Standard Sheet Sizes by Density
| Product | Density (lb/ft³) | Sheet Sizes (H × W × L) |
|---|---|---|
| FR-3703 | 3 | 24 in × 48 in × 96 in |
| FR-3704 | 4 | 24 in × 48 in × 96 in |
| FR-3704.5 | 4.5 | 24 in × 48 in × 96 in |
| FR-3705 | 5 | 24 in × 48 in × 96 in |
| FR-3706 | 6 | 24 in × 48 in × 96 in |
| FR-3707 | 7 | 24 in × 48 in × 96 in |
| FR-3708 | 8 | 24 in × 48 in × 96 in |
| FR-3710 | 10 | 24 in × 48 in × 96 in |
| FR-3712 | 12 | 18 in × 18 in × 100 in; 25 in × 48 in × 96 in |
| FR-3718 | 18 | 18 in × 18 in × 100 in |
| FR-3725 | 25 | 18 in × 18 in × 100 in |
| FR-3730 | 30 | 12 in × 24 in × 96 in; 14 in × 48 in × 60 in; 18 in × 48 in × 100 in |
| FR-3740 | 40 | 10 in × 18 in × 100 in; 10 in × 24 in × 100 in |
Highlights
- Closed-cell, flame-retardant rigid polyurethane foam
- Available in densities from 3 to 40 lb/ft³
- High strength-to-weight ratio from cross-linked resin
- Resistant to water absorption; will not swell, crack, or split on water exposure
- Resistant to most chemicals and solvents
- Machines cleanly with standard HSS cutting tools; also suitable for waterjet and woodworking tools
- Non-abrasive; stable and inert; will not support fungal growth
- Performs well as a wood replacement in many applications
- Maximum use temperature: 260°F (127°C)
Typical Applications
- Composite core where flame retardation is important
- Honeycomb edge closeout for aircraft interior sandwich panels (overhead bins, class dividers, galleys, lavatories)
- Models, design prototypes, vacuum form dies, and mold patterns
- Impact- and fire-insulation liners for hazardous and nuclear material transport containers
- Artificial human bone test media and core material for composite prostheses
- Load-bearing components within the manufacturer’s recommended use conditions
- Dielectric material for radomes and antennas
Details
Brand
Last-A-Foam®
Grade
Chemical Resistant, Fire-Rated (UL 94 V-0), Flame Retardant, Low Flammability, 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.