Was asked to fill bunch of holes on brush finished limestone which were previously filled with grout by installer. Obviously he didn't remove all of the soft and lose material and now those spots are coming apart exposing white material. It is 500 sq ft kitchen with about 20 or so spots to fill (see picture).
My question is what should I use to fill them, Sanded grout, traverfill or something else?
What is the bonding agent in Traverfill and is it really better then grout leaving aside color issues?
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