Soudal Express Repair Cement (Grey)Express Repair Cement is a high quality filler with granular structurefor easy and shrink free repairing of cracks and joints in concrete.#\nApplication method: Remove any loose particles before applying Repair Express Cement. Apply the sealant with a caulking gun or putty knife into the joint or crack. Finishing with a wet spatula or trowel gives the smoothest result. For large cracks, static joints or large screw holes apply preferably 2 layers of the product. Depending on the porosity of the substrate, apply the second layer of product after ca. 30 min. \nCleaning: Before curing, Repair Express Cement can be removed with water from substrates and tools. Finishing: with wet putty knife or trowel Repair: With the same material\n--Very fast Curing\n--Very good adhesion to many mineral surfaces in indoor and outdoor applications.\n--Does not shrink\n--Paintable (after a few hours depending on the amount of.