Metric Imperial O-Ring Assortment

EPDM rubber has a stable molecular structure and shows extremely strong resistance to ultraviolet rays. In the application of  O-rings, this characteristic enables the product to maintain good physical properties even when exposed to sunlight for a long time. It will not age or crack due to UV irradiation. In contrast, under UV exposure, ordinary rubber may experience surface discoloration and hardening in a short time, which will lead to a decline in sealing performance. For example, in the sealing systems of outdoor equipment, Metric Imperial O-Ring Assortment made of EPDM can maintain stable sealing effects for several years, while ordinary rubber O-rings may need to be replaced after only a few months.

Ozone is a strong oxidant that has a serious erosive effect on rubber materials. Due to its special chemical structure, EPDM rubber contains a large number of saturated chemical bonds, endowing it with excellent ozone resistance. During the use of Metric Imperial O-Ring Assortment, when facing ozone in the atmosphere, EPDM-made o-rings can maintain elasticity and sealing performance for a long time. However, ordinary rubber will quickly crack and break in an ozone environment, resulting in sealing failure. In some high-altitude areas or chemical production environments where the ozone concentration is relatively high, the advantages of EPDM-made O-rings are particularly obvious.