Toupret Exterior Masonry Repair Filler will fill without shrinking to any depth limit and repair without formwork. Weather resilient, it will adhere to damp masonry and is also easy to shape. It can be used on all rough masonry surfaces such as cement, concrete, breeze blocks, bricks and stones, and can be overcoated 48-72 hours from application with any standard water-based masonry paint or mineral paint. If using polyurethane or epoxy solvent-based paints, first prime with a water-based exterior paint.