5 golden rules to cut glass tiles correctly by using a diamond blade on an electric wet saw
Having a good diamond blade for glass tiles is not enough to get a perfect cut on glass tiles or glass mosaic, either glossy or matte. It really is necessary to follow some small but important steps that will help you improve the finished cut and avoid chipping or damage that can be visible on the painted surface of the glass tile. Here are the top five tips that are recommended by professional tilers who are specialists in laying glass tiles to those who are about to use this material for the first time:
1. Use a specific GLASS BLADE TO CUT GLASS TILES that is high quality and is made with a very fine and uniform diamond grain
2. Thoroughly clean the surface of the electric tile saw on which the glass tile or glass mosaic will be placed Even a small grain of sand or piece of glass might be enough to prevent the diamond blade from operating correctly. It could even damage the painted side of the glass tile. This tip gains importance in the case when you use a water electric tile cutter with a stable disk, and for this reason, you need to slide the tiles on the support surface. The support surface can be easily cleaned with plain water.
3. Revive the blade before cutting Many diamond blades, unless brand new, do not have a ready-to-cut diamond edge. In this case it is advisable to increase the cutting capacity of the blade by reviving (clearing) the cutting edge of the diamond crown. It is easy to dress the cutting edge by using a special white fine-grained abrasive stone. Attention! Do not use concrete blocks to sharpen blades which are meant to cut glass tiles, you could damage the blade irreparably. A well sharpened revived disk will increase the speed of cut and will reduce cutting vibrations considerably.
4. Use plenty of water when cutting glass tiles or glass mosaic If you have a water cutter with the possibility to regulate the water flow that goes on to the disc, make sure that the valve is adjusted to the maximum flow. Superheated glass tends to crack and chip easily so you need to use a lot of water to cool down both the diamond blade and the glass tile or glass mosaic.
5. Make sure that the cutting process is not too slow If the glass blade you are using is of high quality, it will be possible to cut glass tiles very quickly, thus reducing both the vibration and the risk of chipping. If you have a glass blade of medium-low quality, the only thing that can be suggested is the use of a lot of water although the result still won’t be perfect. Once you have completed the cutting phase never forget that you are dealing with glass tiles and handle them with great care, paying special attention to the corners, which are particularly fragile and can be sharp. Given the high cost of glass tiles and glass mosaic, when working on a bathroom or kitchen, it is always good procedure to use a professional diamond blade. If you don’t you risk spending a fair amount of money to buy the material, you may end up with a poor result due the inappropriate cutting and laying procedure.
The photo above, sent by a reader of our bog (from Florida – U.S.A.), shows one of the main problems arising from using the wrong techniques and products. Along the edge of the glass tiles in the shower cubicle it is possible to see several large chips on the painted surface of the glass tiles, leading to an unacceptable aesthetic result. The client in this specific case complained to the building company and obtained a full refit of the shower cubicle. Needless to say that no building company would be happy to pay for the tilers work twice!
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