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If the grey coating on DensShield® tile backer is torn, can I fix it, or do I need to replace the board?

April 26, 2017backer Coating Grey replace tile torn

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If the grey coating on DensShield® tile backer is torn, can I fix it, or do I need to replace the board?

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There are two ways to accomplish this repair. The first method is the best one. The second method is recommended for residential applications only. Depending on the size and extent of the damage, the second method may not be effective. Method 1: Remove affected tile area and surrounding tiles from stud to stud. This includes removing the DensShield panels. Fasten additional studs, known as “scabs,” to the sides of the original studs to support the new DensShield. Install DensShield panels. Caulk the edges of the new DensShield with a silicone sealant caulk so the joint is waterproof. After caulk has cured, install new tiles and grout. Method 2: Remove grout from around the affected area. Carefully score through the acrylic finish of DensShield panels under the affected area. Remove the tile, including the gray acrylic DensShield finish. Do not remove the DenShield panels. Use a penetrating sealer/primer such as shellac primer or solvent-based primer to seal the exposed DensShield core.