In 1976, at J&L Steel Company (now LTV Steel Company) in Cleveland, Ohio, a test was conducted using our 7/8” SAFE-SHIELD and other products. The test consisted of mounting the windows into a box placed below the slag pit trough and molten slag poured on to the glass. Pictured above is our SAFE-SHIELD Glass just after a dumping of 2900° F. slag. The red-hot steel slag can still be seen all around the box. Of all the products tested, MacPherson designed composite glasses were the only ones that passed.

SAFE-SHIELD has an Infrared Reflective (IRR) coating on the outer face plate. This allows SAFE-SHIELDto be used by itself where the depth is limited to a single glazing or as the final barrier to radiant heat.