UV Resistance Testing

UV resistance testing involves subjecting a specimen or component to ultra violet radiation in a controlled environment chambers. Certain materials like polymer, polymer composites as well as organic coatings like paints, etc., are sensitive to ultra violet radiations emanating from sun, leading to color fades, reduction in strength, etc. It is important to know the impact of ultra violet radiations on coatings used on building and equipment like wind turbines which are standing for years in open environment or regular transportation equipment like cars, trucks, aircraft, etc.

Capability – At TTL, we have UV exposure cabinets to assess radiation resistance of coatings on materials and components as well as composite laminates from small sample to full size panels. We run tests for a variety of customers from coating manufacturers to polymer resin manufacturers.

Some relevant standards:

• ASTM D1435- Standard Practice for Outdoor Weathering of Plastics
• ASTM G151- Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources