EVA is an acronym for Ethylene-Vinyl Acetate (EVA). It is the copolymer of ethylene and vinyl acetate. The weight percent of vinyl acetate usually varies from 10 to 40%, with the remaining being ethylene. The weight percentage of Vinyl Acetate generally defines the application of the EVA.
Broadly and generally speaking, there are three different types of EVA copolymer, which differ in the vinyl acetate (VA) content and the way the materials are used.
The EVA copolymer which is based on a low proportion of VA (approximately up to 4%) may be referred to as vinyl acetate modified polyethylene.The EVA copolymer which is based on a medium proportion of VA (approximately 4 to 30%) is referred to as thermoplastic ethylene-vinyl acetate copolymer and is a thermoplastic elastomer material. The EVA copolymer which is based on a high proportion of VA (greater than 60%) is referred to as ethylene-vinyl acetate rubber.
Softness, Flexibility, Good,Clarity, Good Gloss, Low Temperature, Toughness, Stress-Crack Resistance, Hot Melt Adhesive Waterproof, Properties, Resistance to UV Radiation, Rubber-Like