Porcelain Tile / September 14, 2018 / Brousseau
Application of tiles are rated according to the Porcelain Enamel Institute (PEI) rating system from PEI Class 1 up to PEI Class 5. If you are looking for the right tiles to be used for your walls or ceiling the PEI Class 1 is recommended because the tiles are not exposed to any impact. You can choose the PEI Classes 2 and 3 for your bathroom tiles and the PEI Classes 3 to 5 as kitchen and tabletops and as flooring in any part of your home or building according to the impact foot traffic or exposure of the area where you will install your porcelain tiles.
Drilling Small Diameter Holes (10mm or Smaller) with Carbide Bits. Firstly mark where the hole will be drilled on the tile using a marker. Attach a carbide drill bit to your drill. Ensure that there is a constant supply of cold water that is being directly aimed at the selected drill bit i.e. by using water cooling equipment. Note regarding water cooling. It is important to ensure that there is a constant supply of cold water in order to keep the drill bit cool and to help remove any debris that may have built up whilst drilling the tile.
Because the majority of small diameter holes will be cut into tiles already fixed to the wall it will be necessary to drill a fixing hole behind the tile. Replace the carbide drill bit with the appropriately sized masonry drill bit and set the drill to hammer mode. Use a slow speed for drilling into hard materials to ensure that the tip doesnt overheat. Ensure that the drill bit is frequently withdrawn in order to stop a build up of dust.