EPDM reclaimed rubber is resistant to aging, corrosion, high and low temperature, and is suitable for producing various types of rubber seals. The sealing ring products produced by using EPDM reclaimed rubber have good elasticity and resilience, proper mechanical strength (ie, expansion strength, elongation and tear strength, etc.), stable performance, good processing performance, and non-corrosive contact. Face, do not pollute the medium, etc. Many seal ring products companies will choose it, not only can guarantee the product quality, but also can reduce the raw material cost.
EPDM reclaimed rubber, 90 parts; EPDM rubber, 10 parts; 60 mesh rubber powder, 20 parts; light calcium, 10 parts; zinc oxide, 2.5 parts; SA, 1.5 parts; accelerator DM, 2.5 Parts; accelerator M, 1 part; sulfur, 1.8 parts; paraffin, 2 parts;
Vulcanization temperature: 155°C; vulcanization time: 5 min.
The most important characteristic of EPDM seals is sealing. There are many factors that affect the performance of EPDM reclaimed rubber sealing rings. When selecting EPDM reclaimed rubber for production of sealing rings, reclaimed rubber must be considered. Tensile strength, tensile stress, elongation at break, hardness, compression deformation, and aging resistance. The higher the hardness of the EPDM reclaimed rubber, the higher the settling stress, the lower the elongation at break, and the resistance The better the grinding performance, the smaller the compression set, so the sealing effect of the EPDM sealing ring is better and the service life is longer.
When using EPDM reclaimed rubber to produce seals, adding a small amount of EPDM rubber to the seal can increase the amount of rubber in the seal ring and improve the product's flex cracking. Adding light calcium and rubber powder can reduce raw material costs and improve processing. Process, improve the wear resistance of the sealing ring. When designing the EPDM reclaimed rubber product formula, we must choose the appropriate reclaimed rubber product according to the product's own index requirements, design a reasonable product formula, strictly control the production process, and ensure that each sealing ring has good performance and stable quality. If you want an odorless seal, use an odorless EPDM reclaimed adhesive.
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