Accelerated Weathering Apparatus

Accelerated Weathering Test – Short Details

Accelerated Weathering Test is used to evaluate how a material (paint, coating, plastic, rubber, etc.) performs under simulated environmental conditions such as UV light, temperature, humidity, and water spray in a controlled laboratory environment.

The test accelerates natural weathering effects to predict long-term outdoor performance in a shorter time.

Purpose:

• Check colour fading

• Check cracking or chalking

• Evaluate gloss retention

• Study coating durability

Common Standards:

• ASTM G154 (UV exposure – fluorescent UV lamp)

• ASTM G155 (Xenon Arc exposure)

• ISO 4892 series

Typical Output:

• Visual observation

• Gloss loss %

• Colour change (Delta E)

• Surface defects

 

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