Even if you perform accelerated laboratory weathering testing, you should also perform natural outdoor testing. Why Test? Reliable weathering and corrosion data can help you:

• Avoid unexpected product failures
• Make the best material selection decisions
• Validate new or less-expensive materials or additives
• Improve your competitive advantage
• Warranty your product’s lifetime with confidence
• Natural outdoor weathering and corrosion testing give the most realistic prediction of product performance.

Accelerated testing, available both outdoors and in the laboratory, gives faster results but with some uncertainty about its accuracy. Many companies combine both approaches to ensure reliable results in the shortest time possible. Natural exposure testing is an essential part of any weathering and light stability test program.