FireFace is easily applied without damaging the fabric of the door. It can be fixed beneath or between beads and mouldings. A solvent based contact adhesive is available.
Small gaps and joins are made good with Sealmaster Masterseal - a gun-applied intumescent compound which can be sanded and decorated. Both types of FireFace can be decorated with emulsion or oil-based paints to match in. FireFace Plus can also be stained or veneered.