Eva what is

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. It is a suitable substitute for natural rubber, vinyl, neoprene, polyurethane and PVC foams, wood composites, felts, fiberglass, and mineral wool. The EVA foam material characteristically provides good gloss and clarity, remains strong at low-temperatures, retains its resistance to UV radiation and stress-cracking, and possesses hot-melt adhesive waterproof properties.

Benefits gained from using the EVA foam substitute in production are comparable to traditionally used materials that exhibit. EVA foam has a fine uniform cell structure that allows it to be processed much like other thermoplastics.

It retains its flexibility and resilience, quickly recovers from compressions, and absorbs colors. Bun dimensions vary depending on the density of the foam. It is also relatively non-polluting. As mentioned, EVA is great for cushioning and vibration reduction due to its high resistance, tensile strength, and toughness. It insulates well in cold temperatures, which is why EVA commonly appears in hiking boots as well.

EVA and really any foam, from shaving cream to the meringue on your pie is made up of thousands of small bubbles trapping air.

This is the attribute that allows for its great shock absorption and cushioning qualities, making it the number one option of athletic shoe manufacturers. However, those tiny bubbles are also the downside of using EVA for shoes. Over time, no matter how well-made the foam, bubbles pop or compress. This is why most users, especially runners, complain that their shoes feel flat eventually. And this is why most shoe manufacturers specify a certain lifespan for running shoes miles is a commonly-cited figure.

EVA material has a short life. Manufacturers of high-end and expensive athletic footwear have found a solution to make EVA last longer by using molding. This process entails compressing the material using a pressurized mold, so that the midsoles end up forming a thick skin, which makes the EVA soles more durable. This molding process is quite expensive, which also makes the footwear made from molded EVA pricey.

The hardness of EVA is measured in degrees, and ranges from 5 to Runners should look for EVA midsoles in the 40 to degree range, as lower than 40 degrees is a not stable enough and b makes the footwear prone to faster compression and deterioration. On the other hand, a density of more than 65 degrees is too firm to be comfortable for most runners. When people buy running shoes , they look at the design, price and, to some extent, the materials.

Arguably, not every shopper is discerning enough to take the time to understand how the content of the footwear affects its comfort and performance. EVA is a material favored by many shoe manufacturers, particularly athletic footwear makers.

This is because the material has many great attributes that provide support, stability, comfort and insulation. Contrary to popular belief, midsoles are not the only part of shoes made from EVA, as some shoe makers also choose this material for the insole and outsole as well.

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Abbreviation » Term. Term » Abbreviation. Word in Term. Term » Abbr. Filter by: Select category from list What does EVA mean? Eva ProperNoun A female given name from Hebrew. Couldn't find the full form or full meaning of EVA? Discuss these EVA abbreviations with the community: 0 Comments.

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