Is Block Filler waterproof?

Waterproofing Block Filler. Cementitious Masonry Waterproofing Block Filler can be used to fill, seal, and waterproof interior and exterior unpainted concrete, concrete block, brick and other masonry surfaces.Click to see full answer. Also to know is, can you spray block filler?Before applying concrete block filler, a professional will purge spray equipment before using it with a reducer. An expert can also use an airless spray to apply concrete block filler will use the recommended pressure of 2000 psi. The hose should be ¼ to 3/8 inches, with a tip of . 028 inches. how do you fill holes in concrete block walls? Mix together in a bucket one part Portland cement, three parts sand and enough water to make a stiff patching compound. Fill the hole with the patching compound. Use the corner of a trowel or your finger to pack the compound into the hole, making sure it is completely full. Additionally, what is block filler? This is a filler material used under epoxy, alkyd and latex top coats for interior and exterior concrete finishes. It is used in masonry preparation on concrete block and cinder block (poured and precast).Is block filler the same as primer? About Block Filler 2X Zinsser Block Filler 2X is a high build acrylic primer for interior and exterior residential, commercial, and industrial applications. It has twice the thickness of ordinary primers to fill pinholes and seal voids in concrete block and masonry, resulting in a smoother and more uniform topcoat.