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EVA (Ethylene vinyl acetate)

Ethylene-vinyl acetate (EVA), also known as poly (ethylene-vinyl acetate) (PEVA), is the copolymer of ethylene and vinyl acetate. The weight percent of vinyl acetate usually varies from 10 to 40%, with the remainder being ethylene.
 
Broadly 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. It is a copolymer and is processed as a thermoplastics material – just like low density polyethylene. It has some of the properties of a low density polyethylene but increased gloss (useful for film), softness and flexibility. The material is generally considered non-toxic.
 
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. It is not vulcanized but has some of the properties of a rubber or of plasticized polyvinyl chloride particularly at the higher end of the range. Both filled and unfilled EVA materials have good low temperature properties and are tough. The materials with approximately 11% VA are used as hot melt adhesives.

At AVH , we generaly deal with EVA from SIPCHEM 2518CO , ELVAX 460 , LG 28025  , Formosa 7350 

Please get in touch with any requirements 





Grade MFI (g/10min) Density (g/cm³) VA Content (wt%) Application Description Technical Data
Sipchem 2518 CO 2.5 0.935 18 Foams, Shoe Soles, Injection Moulding, Profile Extrusion and Compounds Manufactured using Exxon-Mobil high-pressure tubular process, 2.5 MFI non slip grade. It exhibits low melting temperature, excellent processability and mechanical
properties.
Sipchem 2518 00
DuPont Elvax 460 2.5 0.941 18 Molding, compounding, extrusion, adhesives, sealants, and wax blends. Copolymer resin for use in industrial applications.  
TAISOX 7350M 2.5 0.938 18 Consumer Goods, Engineering/Industrial Parts, Foam, Sheet. Copolymer, Chemical Resistant, Crosslinkable, Good Flexibility.  
SEETEC VS430 2.5 0.939 19 Shoesoles, Crosslinked foam-buggy wheels, Injection moulding, Hot melt adhesives, Flexible hoses It is produced by ExxonMobil Chemical’s autoclave process technology. With 19% VA content, is an excellent raw material in the application of foam.  
LG EA28025 25 0.951 28 Hot Melt Adhesive, Foam Uniform VA Contents and MI, Strict contaminant control, Good adhesion property  
 

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