For mounting mouldings and millwork (as well as for joining mouldings), this DecoFix Pro is an extra-strong, slow-drying installation and filler that ensures a permanent bond between the mouldings and your walls and ceilings. Offered as a cartridge that is designed to fit into a standard caulking gun, this DecoFix Pro is intended for interior applications on porous surfaces, and is water-based, enabling excess amounts to be readily wiped off.