MUR EX® Exterior All Substrates Repair Filler sets to a rock hard finish and will not flash or grin.  .  It can be used to fill and repair with no depth limit.  No stabilising solution or PVA required.  Offers exceptional adherence to all substrates.  Can be used on new or renovated substrates, either unpainted or painted: gypsum plaster, old painted surfaces, cement, concrete, breeze blocks, bricks, stones, glass and glazed tiles.  Can be overcoated in 24 hours.  Suitable for external use.