FireDefender FS is used for stiles and rails around the perimeter of doors, between the mineral core and the decorative wood or high-pressure laminate edges. It has excellent screw withdrawal characteristics and is also used as internal blocking material to allow hardware to be screwed to the door.
FS is made from gypsum, organic fibers, fiberglass and inert binders. In addition to its excellent performance in fire doors, FS can be used to make fire rated door frames. These can be veneered to match exactly the faces of the door and surrounding woodwork or cabinetry.
FireDefender® FS material makes an excellent fire resistant substrate for wood veneered door frames. These frames have achieved neutral and positive pressure certification for 45-, 60-, and 90-minute ratings. Veneered with the same species as the door faces, they make for beautiful openings when aesthetics are of primary concern.
For important product fire, safety, and use information, go to gp.com/safetyinfo.
Positive-Pressure Furnace Firedoor TestingLearn the advantages and disadvantages of three different testing approaches used by Georgia-Pacific: