We will introduce a case study that significantly reduces the risk of softening deterioration by implementing a second bridge.
The popular rubber material known for its excellent weather resistance and ozone resistance is EPDM. However, in recent years, with the development of sulfur-free options, there have been cases where peroxide-crosslinked EPDM, which is widely used, experiences a softening degradation phenomenon, melting like candy when used for extended periods in high ozone concentration environments. For peroxide-crosslinked EPDM, conducting secondary crosslinking can remove residual peroxides, significantly reducing the risk of softening degradation. Our company accepts consultations regarding market complaints and material troubles related to customer products, and we provide new formulations as countermeasures, ensuring the supply of safe and reliable rubber components. Please feel free to contact us when needed. 【Solutions】 ■ For peroxide-crosslinked EPDM, conducting secondary crosslinking can remove residual peroxides and significantly reduce the risk of softening degradation. ■ If there are concerns about softening degradation due to hydrolysis of urethane rubber, selecting ether-based urethane rubber can mitigate the risk of hydrolysis. *For more details, please feel free to contact us.
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【Issues】 ■ A softening degradation phenomenon occurs, melting like candy. ■ Polyurethane rubber is cited as a material that causes softening degradation. ■ When polyurethane rubber is used for an extended period in water-related or high-humidity environments, there is a possibility of softening degradation occurring. * We also accept online meetings. If you would like an explanation about rubber or have any projects under consideration, please feel free to let us know. * For more details, please do not hesitate to contact us.
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Daiwa Chemical Co., Ltd. is a company primarily engaged in the manufacturing and sales of rubber and plastic components. We handle a wide variety of rubber types, including synthetic rubber and silicone rubber, which are used in various industries such as automotive parts and medical products. Additionally, we have renovated part of our factory into a clean room (ISO Class 8 compliant / cleanliness: Class 100,000) to enhance our capabilities for rubber components in the medical device sector. We have a proven track record with products such as check valves, rings, and sealing rubber. If you have any inquiries regarding rubber molding, please feel free to consult us.
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