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The holes are usually filled with an acrylic tile adhesive <a href="https://www.wirthfloor.com.au/">epoxy flooring brisbane</a> type of product mixed with either the grinding dust or cement powder which is hand scraped across the floor using a trowel. The preferred way to fill the holes is to spray the acrylic adhesive ahead of the grinder so that the diamonds mix it into the holes with the grinding dust on the third or fourth pass at around 120 grit. This method is faster and the dust matches the colour of the floor to hide the holes better than when using cement powder.