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Expanded polystyrene is a rigid closed cell/cellular plastic resin made from petrochemicals derived from crude oil. The resin is incorporated with the blowing agent pentane. During the pre-expansion, steam softens the plastic resin causing the pentane to expand the plastic into beads at least 50 times their original size.
Large volumes of EPS are available in molded foam & small quantity can be fabricated.
There are two principle applications for this material:
- Insulation... Excellent insulating properties at a low cost compared to fiberglass and other common insulating materials.
- Packaging...Very useful for packaging where items are not extremely fragile, as it offers good cushioning at a comparatively low cost.
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Characteristics
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Applications-Benefits
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- EPS does NOT contain CFC's, HCFC's, or formaldhyde.
- EPS does NOT contribute to the growth of mold or mildew.
- EPS is recyclable.
- White color
- Rigid, bead-like texture
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- Excellent for blocking/bracing applications of durable equipment
- Excellent thermal insulation properties with low moisture absorption at low cost
- Low cost spacer and void fill material
- Can be machined or molded to fit specific dimensions or contours
- Can be used to create economical architectural lettering and shapes
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