Only the strong survive the P-1 test. Super Spacer® withstands 140°F/60°C temperatures, 95 - 100% humidity levels and constant UV bombardment in what many engineers consider the world's toughest accelerated aging and durability test.

One week spent in a P-1 chamber is considered by industry experts to be approximately equivalent to one year in the field.  All Super Spacer products pass at least 60 weeks in the P-1 chamber, with our premium products passing up to 125 weeks of testing.

Why is this so important?

Super Spacer's durability means that your windows will remain thermally-efficient and condensation-free for many years to come.

Condensation occurs first around the window's edge - where the glass insulates least effectively and where surface temperatures are the coldest. If a standard "cold edge" spacer exists and outside temperatures fall to 0°F/-17.78°C, condensation will form on the glass edge even in homes with as little as 15% relative humidity.

The solution to condensation formation on glass is to increase the thermal efficiency of the edge of the glass: the window's weak link. Substitute Super Spacer a superior warm edge spacer and the inside humidity can go as high as 50% before condensation forms on the glass. The problem is virtually eliminated.