The first concern is that it s very stiff.
Ethylene vinyl acetate eva for sound proofing.
The eva copolymer which is based on a high proportion of va greater than 60 is referred to as ethylene vinyl acetate rubber.
Ethylene vinyl acetate eva is not hazardous by ingestion unless you eat an object made of eva that s big enough to cause choking or other problems in which case it would pose the same hazards as any other plastic object.
It s made from eva ethylene vinyl acetate so the word is in there but its characteristics are completely different.
Eva is an elastomeric polymer that produces materials which are rubber like in softness and flexibility.
With that comes a higher resonant frequency we really want a limp barrier to keep its resonant frequency below the audible range since materials are acoustically transparent at their.
It is a suitable substitute for natural rubber vinyl neoprene polyurethane and pvc foams wood composites felts fiberglass and mineral wool.
Eva foam is the acronym for the closed cell ethylene vinyl acetate copolymer foam used as an effective substitute for a variety of materials used in production.
The effect of the cell structure parameters and pore filling gas type on the sound absorption performance of the eva foam materials were analyzed in terms of their sound absorption capability.