Suitable for FD30 & FD60 doors up to 40kg in weight. Intumescent Hinge Pads MUST be used on fire doors for full compliance to BS EN 1634 & BS EN 1935. Sold in packs of 6 (enough for 3 hinges 1½ pairs). Our monoammonium phosphate-based intumescent hinge pads ensure virtually no compression when fitted, unlike the cheaper, more malleable graphite-based pad that is easily compressed, allowing screws and fixings to work loose. When subjected to heat, the monoammonium phosphate-based pad expands at a lesser heat range than the malleable graphite-based one, thus preventing toxic fumes from passing sooner. Also available in other finishes.