Why does rubber deteriorate in sunlight? Find solutions!

When rubber sheets are used outdoors, especially in areas with strong sunlight, they often deteriorate quickly due to key natural factors like ultraviolet (UV) rays and chemical reactions with gases in the air. These conditions cause rubber to crack, harden, and degrade more rapidly than it should.

Why Rubber Deteriorates Rapidly in Strong Sunlight
According to scientific studies, when oxygen (O₂) in the air is exposed to UV rays, it forms free radicals, which further react to create ozone (O₃). Ozone concentration becomes high in areas with intense sunlight, and it aggressively breaks down standard rubber sheets not specifically designed to resist ozone. This leads to cracking, hardening, and accelerated deterioration.

How to Prevent and Address Rubber Deterioration Outdoors
Choosing the right type of rubber sheet for outdoor use is essential. In environments with fluctuating temperatures and intense sunlight, it’s recommended to use rubber sheets specifically designed for outdoor applications. These sheets are engineered to withstand ozone and environmental stresses effectively. EPDM rubber sheets are popular for outdoor applications because they are highly resistant to sunlight and ozone, unlike standard rubber sheets.

Why EPDM Rubber is Ideal for Outdoor Use
EPDM rubber has a low level of double bonds in its chemical structure, making it less susceptible to UV and ozone damage. It’s also more cost-effective compared to other options like silicone or Viton rubber. However, when selecting EPDM rubber sheets, it’s best to choose sheets made from pure EPDM without filler additives. Look for those specifically formulated for outdoor use, with a tensile strength above 7 MPa, to ensure both durability and value.

If you’re looking for high-quality EPDM rubber sheets for outdoor applications, HyperSheet offers reliable products that meet your needs.

Contact Us Now:
Line Official Account: @ptirubber
Email: info@ptigroups.com
Phone: +662-2577154 | Mobile: +6686-3077319

HyperSheet by Polytech Industry Company Limited
With over 18 years of experience in producing and distributing industrial rubber products, trust in our quality and standards, serving both domestic and international markets.