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Flexural Modulus Flexural Modulus |
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Specifications Met Specifications Met |
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About Plastic
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About Selecting Thermal Insulation
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Moisture-Resistant Low-Temperature
Rigid Polystyrene Foam Insulation Sheets
These sheets resist the absorption of water, air, and gas and are widely used in cold-storage and packaging applications.
Polypropylene-coated sheets have an added layer of moisture protection.
1 lbs./cu. ft. Density
- Temperature Range: -150° to 165° F
- Heat Flow Rate: 0.26 Btu @ 75° F
- Color:
Sheets: White;
Polypropylene-Coated Sheets: White with Gold Finish - Specifications Met:
Sheets: UL 94HF1;
Polypropylene-Coated Sheets: ASTM E84 15/125 for Flame and Smoke
1 ft. × 12" | 4 ft. × 24" | ||||||
|---|---|---|---|---|---|---|---|
| Thick. | R Value | Flexibility | Pkg. Qty. | Pkg. | Pkg. | ||
Sheets | |||||||
| 1" | 3.8 | Rigid | 6 | 0000000 | 000000 | 000000 | 000000 |
| 1 1/2" | 5.8 | Rigid | 4 | 0000000 | 00000 | 000000 | 00000 |
| 2" | 7.7 | Rigid | 3 | 0000000 | 00000 | 000000 | 00000 |
Polypropylene-Coated Sheets | |||||||
| 3/4" | 2.9 | Rigid | 8 | 00000000 | 00000 | 00000000 | 00000 |
| 1" | 3.8 | Rigid | 6 | 00000000 | 00000 | 00000000 | 00000 |
| 1 1/2" | 5.8 | Rigid | 4 | 00000000 | 00000 | 00000000 | 00000 |
Electrical-Insulating Polystyrene Sheets
- Color: Semi-Clear Off-White
- Temperature Range: -75° to 212° F
- Tensile Strength: 9,000 psi (Good)
- Impact Strength: 0.3 ft.-lbs./in. (Poor)
- Hardness: Rockwell R130 (Hard)
- For Use Outdoors: No
- Specifications Met: Made of FDA Listed Material, MIL-LP-516A
Known for its electrical insulating properties, these sheets are often used for cable connectors, electrical housings, and in microwave applications. This material is also called Rexolite.
| Thick. | Thick. Tolerance | Dielectric Strength | Each | |
6" × 6" | ||||
|---|---|---|---|---|
| 1/8" | 0" to 0.008" | 500 V/mil | 0000000 | 000000 |
| 1/4" | 0" to 0.008" | 500 V/mil | 0000000 | 00000 |
| 1/2" | 0" to 0.012" | 500 V/mil | 0000000 | 00000 |
6" × 12" | ||||
| 1/8" | 0" to 0.008" | 500 V/mil | 0000000 | 00000 |
| 1/4" | 0" to 0.008" | 500 V/mil | 0000000 | 00000 |
| 1/2" | 0" to 0.012" | 500 V/mil | 0000000 | 00000 |
12" × 12" | ||||
| 1/8" | 0" to 0.008" | 500 V/mil | 0000000 | 000000 |
| 1/4" | 0" to 0.008" | 500 V/mil | 0000000 | 000000 |
| 1/2" | 0" to 0.012" | 500 V/mil | 0000000 | 000000 |
Electrical-Insulating Polystyrene Rods
- Color: Semi-Clear Off-White
- Temperature Range: -75° to 212° F
- Tensile Strength: 9,000 psi (Good)
- Impact Strength: 0.3 ft.-lbs./in. (Poor)
- Hardness: Rockwell R130 (Hard)
- For Use Outdoors: No
- Specifications Met: FDA Compliant 21 CFR 177.2710, MIL-LP-516A
These rods are made of a material known as Rexolite. They are electrically insulating and often used for cable connectors, electrical housings, and in microwave applications.
| Dia. | Dia. Tolerance | Dielectric Strength | Lengths, ft. | Per Ft. | |
| 1/8" | -0.002" to 0.002" | 500 V/mil | 0000000 | 00000 | |
| 1/4" | -0.002" to 0.002" | 500 V/mil | 0000000 | 0000 | |
| 3/8" | -0.002" to 0.002" | 500 V/mil | 0000000 | 0000 | |
| 1/2" | -0.002" to 0.002" | 500 V/mil | 0000000 | 0000 | |
| 3/4" | -0.002" to 0.002" | 500 V/mil | 0000000 | 00000 | |
| 1" | -0.002" to 0.002" | 500 V/mil | 0000000 | 00000 |
Easy-to-Form Polystyrene Sheets and Strips
- Color: White
- Temperature Range: 0° to 155° F
- Tensile Strength: 2,400-4,000 psi (Poor)
- Impact Strength: 1.5 ft.-lbs./in. (Poor)
- Hardness: Rockwell R70 (Hard)
- For Use Outdoors: No
- Specifications Met: Made of FDA Listed Material, UL 94HB
Often fabricated into signs, packaging, and light duty housings, these sheets and strips are easy to thermoform.
Sheets
12" × 24" | 36" × 36" | 40" × 72" | |||||
|---|---|---|---|---|---|---|---|
| Thick. | Thick. Tolerance | Each | Each | Each | |||
| 1/32" | -0.003" to 0.003" | 0000000 | 00000 | 0000000 | 00000 | 0000000 | 000000 |
| 1/16" | -0.005" to 0.005" | 0000000 | 0000 | 0000000 | 00000 | 0000000 | 00000 |
| 3/32" | -0.006" to 0.006" | 0000000 | 0000 | 0000000 | 00000 | 0000000 | 00000 |
| 1/8" | -0.008" to 0.008" | 0000000 | 0000 | 0000000 | 00000 | 0000000 | 00000 |
| 5/32" | -0.01" to 0.01" | 0000000 | 0000 | 0000000 | 00000 | 0000000 | 00000 |
| 3/16" | -0.012" to 0.012" | 0000000 | 00000 | 0000000 | 00000 | 0000000 | 00000 |
| 1/4" | -0.012" to 0.012" | 0000000 | 00000 | 0000000 | 00000 | 0000000 | 000000 |
Strips
24" Lg. | 48" Lg. | ||||
|---|---|---|---|---|---|
| Thick. | Thick. Tolerance | Each | Each | ||
2" Wd. | |||||
| 1/8" | -0.013" to 0.013" | 0000000 | 00000 | 0000000 | 00000 |
| 3/16" | -0.019" to 0.019" | 0000000 | 0000 | 0000000 | 0000 |
| 1/4" | -0.025" to 0.025" | 0000000 | 0000 | 0000000 | 0000 |
4" Wd. | |||||
| 1/8" | -0.013" to 0.013" | 0000000 | 0000 | 0000000 | 0000 |
| 3/16" | -0.019" to 0.019" | 0000000 | 0000 | 0000000 | 0000 |
| 1/4" | -0.025" to 0.025" | 0000000 | 0000 | 0000000 | 00000 |
6" Wd. | |||||
| 1/8" | -0.013" to 0.013" | 0000000 | 0000 | 0000000 | 0000 |
| 3/16" | -0.019" to 0.019" | 0000000 | 0000 | 0000000 | 00000 |
| 1/4" | -0.025" to 0.025" | 0000000 | 0000 | 0000000 | 00000 |
8" Wd. | |||||
| 1/8" | -0.013" to 0.013" | 0000000 | 0000 | 0000000 | 00000 |
| 3/16" | -0.019" to 0.019" | 0000000 | 0000 | 0000000 | 00000 |
| 1/4" | -0.025" to 0.025" | 0000000 | 00000 | 0000000 | 00000 |
Easy-to-Form Polystyrene Rods
- Color: White
- Temperature Range: -10° to 170° F
- Tensile Strength: 2,400-4,000 psi (Poor)
- Impact Strength: 1.5 ft.-lbs./in. (Poor)
- Hardness: Rockwell R70 (Hard)
- For Use Outdoors: No
- Specifications Met: FDA Compliant 21 CFR 177.1640, UL 94HB
Easy to thermoform, these rods are often molded into parts for displays and shelves.