The main factors affecting the aging of rubber sealing strips


Release time:

2024-02-28

The aging problem of rubber sealing strips has always been a difficult problem that troubles the sealing strip industry. Rubber aging mainly refers to the surface cracking, hardening

The aging problem of rubber sealing strips has always been a difficult problem that troubles the sealing strip industry. Rubber aging mainly refers to the surface cracking, hardening, discoloration, cracks and other phenomena that occur during the use or storage of rubber. Currently, rubber is still widely used in the sealing strip industry, so solving the aging problem of rubber is still very important for the development of the sealing strip industry, Meanwhile, the aging problem of rubber sealing strips is a major factor affecting the sealing performance of products used.

The main factors that affect the aging of rubber seals are also the natural environment. Today, we will talk about the following three elements:

One is that the influence of air components such as oxygen and ozone is mainly due to the occurrence of oxidation reactions, which cause the molecular chains of rubber to break. But the impact of ozone and oxygen is different, ozone is more destructive than oxidation.

Secondly, rubber sealing strips are affected by light and moisture, which are key factors accelerating aging. Moisture in the air is a necessary condition for rubber to soften. And light is the main factor that causes it to change color, long-term exposure to sunlight can easily cause rubber to deform and soften.

Thirdly, temperature has a significant impact on rubber. Mainly in cold winter, it can cause rubber to harden severely, which can lead to rubber fracture. In hot summer, it can cause rubber to soften.

In summary, the above are important factors that contribute to the aging of rubber seals. So when maintaining the sealing strip, the main focus should be on waterproofing, air isolation, and insulation.

The question of the service life of the EPDM sealing strip itself is an unanswered question because of its service life. In general, it is related to the usage environment, so there is no standard statement. It should be conservative and not less than 15 years. Its advantage is aging resistance, and it has a relatively long service life in the environment where rubber is resistant to aging.

Hebei Ruiyuan Automotive Parts
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