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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: See Table
- Heat Flow Rate: 0.26 Btu @ 75° F
- Color: White
- Specifications Met:
Sheets: UL 94 HF-1;
Polypropylene-Coated Sheets: ASTM E84 15/125 for Flame and Smoke
1 ft. × 12"
Temp. Range, °F | |||||||
|---|---|---|---|---|---|---|---|
| Thick. | Min. | Max. | R Value | Flexibility | Pkg. Qty. | Pkg. | |
Sheets | |||||||
| 1" | -150° | 165° | 3.8 | Rigid | 6 | 0000000 | 000000 |
| 1 1/2" | -150° | 165° | 5.8 | Rigid | 4 | 0000000 | 00000 |
| 2" | -150° | 165° | 7.7 | Rigid | 3 | 0000000 | 00000 |
Polypropylene-Coated Sheets | |||||||
| 3/4" | __ | 165° | 2.9 | Rigid | 8 | 00000000 | 00000 |
| 1" | __ | 165° | 3.8 | Rigid | 6 | 00000000 | 00000 |
| 1 1/2" | __ | 165° | 5.8 | Rigid | 4 | 00000000 | 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: FDA Compliant 21 CFR 177.1640, UL 94 HB
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 94 HB
Easy to thermoform, these rods are often molded into parts for displays and shelves.
For technical drawings and 3-D models, click on a part number.
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: FDA Compliant 21 CFR 177.2710, 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.
For technical drawings and 3-D models, click on a part number.
| 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.
For technical drawings and 3-D models, click on a part number.
| 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 |
V-Belts
