Identify the exposure before comparing aging performance
- UV resistance
The arrows represent the stated light exposure. Confirm test conditions and retained properties for the actual material.
- Photodegradation / photo-oxidation
Light can change susceptible material, with oxidation where oxygen participates. Check the actual mechanism and exposure evidence.
- Thermal agingThis term
Sustained heat exposure can alter material properties. Use the specified aging method and retained-property criteria.
- Relative thermal index (RTI)
The index follows long-term evaluation of a specified material property. Electrical and mechanical property categories are not one interchangeable temperature rating.
- Ozone resistance
The exposure can cause cracking in susceptible compounds under the stated conditions. Ozone resistance is different from general outdoor durability.
Light, heat and ozone can change material properties through different exposure mechanisms. Resistance claims need their own method, duration and actual formulation.
Conceptual exposure and degradation sketches without lifetime predictions. Accelerated exposure does not automatically represent service years.