Ethylene vinyl acetate (EVA) is the copolymer of ethylene and vinyl acetate. It’s an extremely elastic material that can be sintered to form a porous material similar to rubber, yet with excellent toughness. The porous elastomeric material is three times as flexible as low-density polyethylene (LDPE), showing tensile elongation of 750% with a peak melting temperature of 250°F (96°C).
This flexible porous plastic material has good barrier properties, low-temperature toughness, stress-crack resistance, hot-melt adhesive waterproof properties, and resistance to ultraviolet radiation. Porous EVA has little or no odor and is competitive with rubber and vinyl products in many electrical applications.