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EPE foams are low density, semi-rigid, closed cell foam that are generally somewhere in stiffness/compliance between Expanded polystyrene and Polyurethane. Production of EPE foams is similar to that of expanded polystyrene, but starting with PE beads. [1] Typical densities are 29 to 120 kg/m 3 (49 to 202 lb/cu yd) with the lower figure being ...
The base resin, used in a complex formula, is an ethylene-based polyolefin elastomer (like polyethylene and EVA). Foam that is manufactured with these resins has many physical benefits. Unlike a sponge, foams from this process are closed-cell, meaning it's waterproof and resists mold, mildew, and bacteria from entering the material.
A polymeric foam is a special foam, in liquid or solidified form, formed from polymers. [1] Examples include: Ethylene-vinyl acetate (EVA) foam, the copolymers of ethylene and vinyl acetate; also referred to as polyethylene-vinyl acetate (PEVA) Low-density polyethylene (LDPE) foam, first grade of polyethylene (PE)
Spray polyurethane foam comes in a range of densities and cell structure. Low density foams are referred to as open cell SPF while higher density foams are referred to as closed cell foam. 1.8-2 pound polyurethane foam has the highest R-value of readily available spray foam insulation used in homes and buildings. [5]
Foam rubber is a type of open-cell foam. A closed-cell metal foam. Closed-cell foams do not have interconnected pores. The closed-cell foams normally have higher compressive strength due to their structures. However, closed-cell foams are also, in general more dense, require more material, and as a consequence are more expensive to produce.
Zotefoams Plc manufactures a range of closed cell crosslinked foams from polyolefins and engineering polymers for global use in sports, construction, marine, automation, medical equipment and aerospace. The headquarters are in Croydon, London, with additional foam manufacturing plants in Kentucky, USA and Brzeg, Poland.
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