Resistance to light and weather conditions, and colour change measurement, ISO 4892-2

UV radiation can cause polymer degradation, while sunlight often causes discolouration. The difference between a QUV tester and a sunlight tester (Xenon) is that a QUV tester only uses UV-A, B and C radiation, while the Xenon tester only tests with some UV-A, visible light and infrared light (IR). Rubber products used outside are humid about 50% of the time due to rain, air humidity, dew, etc. That's why the Xenon tester also has the option of testing several cycles of demi-water spraying. After ageing for a specified period, the difference in colour is measured and expressed as l, a, b values, resulting in ΔE, which is an indication of the total discolouration.  Furthermore, changes in material properties can be determined.

 

The test is carried out according to ISO standard 4892-2 unless otherwise desired.

 

More about rubber resistance to light, or the resistance to weather conditions?

For more information about rubber resistance to light, or the resistance to weather conditions, please contact us by visiting our contact page or by using our  "Ask us a question" form.

 

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