ETERNABOND ROOF SEAL AND SUPER SEAL
AGING AND UV RESISTANT CHARACTERISTICS

Eternabond Super Seal is designed to be age and UV resistant. The unique film backing of the Super Seal has been specially formulated to be resistant to UV rays, thermal expansion, impact and abrasion. Whether you are using Eternabond Super Seal White, Gray or Black, the tough, specially formulated multi-polymer alloy film will provide a long service life over a wide range of temperatures.

UV Ray Aging testing provided the following results for the Eternabond Super Seal, 8-mil film:

4000 Hour QUV Weather-0-meter Test with UV Light, UVA 340 in the presence of humidity

The results show that tensile yield and tensile at break are increasing in value over time, with an average elongation percent loss of only 2.8% (-11.3% over 4000hours UV). The Q-Panel Lab Products experts call 2000 hours of UV testing the equivalent of one to two actual years of exposure. Therefore, the 4000 hours of UV testing could be seen to represent as much as four years of actual UV exposure. Extrapolating the 2.8% loss of elongation leads to an outdoor film life projection of from 18 to 35 years.

Our backing films also exhibit great heat stability. Other products that use our backing are designed to operate indefinitely at service temps of 250 degrees F and beyond without a loss of physical strength. This family of backings has been in use since 1985 and it has been used at service temps exceeding 300 degrees F.