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I want to lay tiles on burgundy slabs without removing them (I redid all the cement joints to maintain the slabs between them). What kind of patching should I use? Some people advise against this pose and others speak to me of fiber patching.

After passing a primer on your Burgundy slabs you can use a product type OMNICHAPE FIBER PAREXLANKO that will be perfect for this kind of work.This type of product allows a patching up to 30 mm. Beyond that, you have to re-establish a real screed.

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