Outdoor Suitability - UL 746C Test Standard Explained

Share This Page • Free Access to 80,000 Datasheets

Outdoor Suitability - UL 746C

Materials considered suitable for outdoor use have been subjected to ultraviolet (UV) light exposure and/or water immersion. UV exposure is performed by using either a twin-enclosed carbon weatherometer for 720 hours, or a xenon-arc weatherometer for 1000 hours. Water immersion testing is performed for 7 days at 70°C

Specimens are tested before and after exposure for flammability, mechanical impact and mechanical strength. Materials whose properties are not significantly degraded in any of these areas are considered to have passed and are suitable for outdoor use.

Rating	Description
f1	The material has met both UV and water immersion requirements.
f2	The material has met either UV or water immersion requirements, or has only been partially tested.

Property information for specific grades of resin are available in the Prospector.
If you already have an account, you can login here or you can register for free, instant access:

Join the IDES Network: Email Alerts • Blog • Twitter • LinkedIn