Ethylene vinyl acetate (also known as EVA) is the copolymer of ethylene and vinyl acetate.It is a polymer that approaches elastomeric materials in softness and flexibility, yet can be processed like other thermoplastics. The material has good clarity and gloss, barrier properties, low-temperature toughness, stress-crack resistance, hot-melt adhesive water proof properties, and resistance to UV radiation. EVA has little or no odor and is competitive with rubber and vinyl products in many electrical applications. EVA foam is used as padding in equipment for various sports such as ski boots, hockey & boxing gloves, mixed martial arts, wakeboard boots, water-ski boots, and fishing rods. It is typically used as a shock absorber in sports shoes. EVA slippers and sandals are nowadays very popular because of its properties like light weight, easy to mold, odorless, glossy finish, and cheaper compared to natural rubber. In fishing rods, it is used to construct handles on the rod-butt end. EVA is easily cut from sheets and molded to shape.
|
[Eva Form Spec] |
EH-20 (EVA) |
EH-20 (LT) |
EH-25 |
EH-35 |
EH-50 |
EH-60 |
EH-70 |
|
|
EVA Percentage |
% |
89.0% |
79.0% |
69.0% |
71.0% |
62.8% |
65.5% |
66.4% |
|
Density |
kg/m3 |
44 |
49 |
67 |
94 |
130 |
189 |
248 |
|
Tensile Strength |
kpa |
420 |
820 |
780 |
1,060 |
1,200 |
1,680 |
2,175 |
|
Elongation at Break |
% |
150 |
190 |
100 |
130 |
70 |
90 |
110 |
|
Hardness |
@/mm |
18-20 |
20-23 |
23-27 |
32-35 |
45-50 |
55-60 |
65-70 |