Gripfill is a solvent-borne filled rubber resin adhesive developed to bond virtually any rigid material together regardless of the evenness of the surface. Gripfill is a high strength one part gap filling adhesive specially formulated to bond a large variety of materials such as plywood block wood chipboard hardboard laminated plastics rigid uPVC (excluding foamed PVC) rigid insulation materials (excluding polystyrene) metal sheeting including aluminium steel galvanised iron tin plate and non-ferrous metals to themselves or to brick stone breeze block sand/cement screeds concrete plaster plasterboard and insulation boards. Where Gripfill is used externally it must be protected from driving rain ponding water or permanently wet situation. This can be achieved by sing a suitable silicone sealant. Gripfill is not recommended for bonding mirrors.