Item# W10-00076
Last-A-Foam® RF-2200 Dielectric Foam Series, Low-Density Rigid Polyurethane Foam
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Description
Last-A-Foam® RF-2200 Dielectric Foam Series is a low-density, closed-cell rigid polyurethane dielectric foam engineered for radomes, antennas, RF communication systems, and other radio frequency (RF) applications. Its RF-transparent, low-loss dielectric properties support reliable signal transmission while providing dimensional stability, water resistance, and excellent machinability. Manufactured by General Plastics, RF-2200 is also suitable for high-temperature composite processing and polyurethane foam core applications where controlled dielectric performance is required.
Available in standard densities of 3, 4, and 6 lb/ft³, with custom densities available to meet specific dielectric constant and loss tangent requirements. Cut thicknesses are available from 0.125 in (3.175 mm) up to each grade’s maximum standard stock height.
Standard Stock Sizes by Density
| Product | Density (lb/ft³) | Standard Stock Size (H × W × L) |
|---|---|---|
| RF-2203 | 3 | 24 in × 48 in × 96 in |
| RF-2204 | 4 | 24 in × 48 in × 96 in |
| RF-2206 | 6 | 24 in × 48 in × 96 in |
Highlights
- Low-density, closed-cell rigid polyurethane dielectric foam
- Available in standard densities of 3, 4, and 6 lb/ft³
- Custom densities available to meet specific dielectric constant and loss tangent requirements
- RF-transparent with low-loss dielectric properties for reliable signal transmission and reception
- Does not absorb water, helping maintain dielectric and structural performance
- Dimensionally stable with a uniform cell structure for complex shapes and tight tolerances
- Highly machinable and easy to coat and process
- Excellent compressive and electrical insulation properties
- Compatible with many types of adhesives
- Resistant to oil, grease, and solvents
- Biologically inert; will not rot or decay
- Suitable for high-temperature composite processing up to 350°F
- Maximum use temperature: 340°F (171°C)
Typical Applications
- Radomes and RF-transparent protective structures
- Antennas and RF communication systems
- High-temperature polyurethane foam core and composite core applications
- Aerospace components
- Automotive components
- Electronic packaging insulation
- Electrical isolators
- Spacer material in antenna construction
- Core material for resin-transfer molding
- Protective structures exposed to weather, dust, and impact hazards
Details
Brand
Last-A-Foam®
Grade
Electrical Grade, Dielectric, High Temperature, RF-Transparent
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.