EN
High-performance EVA compounds for photovoltaic films, foamed footwear materials and hot-melt adhesives
Material: EVA
Hardness: 40A-95A
Color: Customizable
Typical applications: Photovoltaic encapsulation film, foamed shoe materials, cable sheathing
Note: We only supply rubber compounds (customizable in hardness, color, and formulation). We do not manufacture or sell any finished rubber products. After receiving the compound, customers may carry out downstream processes such as molding and curing themselves or through a third party.
- Description
- Application
- Specifications
- Advantage
- FAQ
- Recommended Products
Description
The properties of EVA are primarily determined by its vinyl acetate (VA) content. As the VA content increases, the elasticity, flexibility, transparency, and adhesion of EVA improve significantly. With excellent low-temperature toughness (remains unbreakable at -50°C),chemical resistance, impact resistance, and superior optical transparency, EVA has become a core material in the new energy (photovoltaic), footwear, packaging, and adhesive industries.
Application
Footwear industry: Midsole foaming material for sports shoes, slippers, and sandals.
Wire and cable: Halogen-free flame-retardant cable sheathing.
Specifications
|
Common Name |
Ethylene-vinyl Acetate Copolymer Rubber Compound |
|
Hardness(SHA) |
40A~95A |
|
ASTM D-2000 Classification |
CA |
|
Tensile(Mpa) |
10 ~ 25 |
|
Elongation at Break(%) |
400 ~ 800 |
|
Compression Set（%） |
< 15 |
|
Temperature Range |
-60℃~+120℃ |
|
Specific Gravity（g/cm³） |
1.10 ~ 1.30 |
|
Resistances |
Good water resistance |
|
|
Excellent corrosion resistance |
|
|
Good shockproof and cushioning properties |
|
|
Excellent sound insulation performance |
|
Production process |
Extrusion |
|
Formula & color |
Custom |
|
Form |
Sheet or granules |
|
Shelf Life |
5–7 days with accelerator, 1 -2year without accelerator. |
|
Storage conditions |
Store in a cool, dry place. After opening, seal tightly to prevent moisture absorption and loss of active ingredients |
Advantage
Excellent optical properties and weather resistance
Superior low-temperature toughness
Excellent processability and foaming performance
Good adhesion and compatibility
Chemical resistance and waterproofness
FAQ
Q: Do you sell finished products or raw materials?
A: We only supply rubber compounds, not finished products. You can choose hardness, color, and formulation based on your product needs. We mix to order and deliver.
Q: What rubber types can you handle?
A: Common types include NR, SBR, BR, NBR, EPDM, CR, silicone rubber, fluororubber, etc., subject to actual capability.
Q: Are hardness and formulation linked?
A: No. The same hardness can be achieved with different formulations. The difference lies in tensile strength, tear resistance, compression set, oil resistance, aging resistance, etc. Tell us your application and we’ll recommend the right system.
Q: Can you compound to the customer’s formula?
A: Yes. We support toll processing with customer-supplied materials or mixing to a customer-specified formula. We can also recommend a formula based on performance requirements.
Q: How do you ensure batch-to-batch consistency?
A: Through raw material batch control, fixed mixing process parameters, and sampling tests (hardness, specific gravity, Mooney viscosity, etc.).
