Toupret Murex white resin powder filler ideal for exterior filling with excellent adhesion. Murex is for filling and repairing all exterior and interior substrates, including old painted surfaces, masonry, primed wood, concrete, cement, stone, brick, plaster and cellular concrete. Toupret Murex is an all substrates filler and can be over painted with any decorative coating. 1kg of powder makes 1 litre of filler. Holes; up to 10mm deep - drying time: 24 hours.