Ozone resistance (static and dynamic) ISO 1431-1

Rubber products used in the open air may be affected by ozone (O3), which is present in the atmosphere. This can result in crack formation, and eventually cause the product to tear right through. Some rubber compounds are naturally ozone resistant, others can be mixed with anti-degradants that make them ozone resistant during a specific service life. Ozone resistance can be tested at different temperatures, ozone concentrations and exposure times. Standard test conditions are 50 pphm ozone, 40°C and 20% elongation.


The test is carried out according to ISO standard 1431-1 unless otherwise desired.


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