Do You Seal Slate Before Grouting. Answering a recent question involving slate, the question was should you seal slate tiles before grouting or after? Slate should always be sealed before you grout to avoid this problem, but very few salespeople warn you about this.i think the wire brush drill bit may scratch the stone. My best advice is to seal the slate.
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Let slate tile dry thoroughly. Slate should always be sealed before you grout to avoid this problem, but very few salespeople warn you about this.i think the wire brush drill bit may scratch the stone. And urethane grout doesn't need to be sealed.
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It's ideal to do this within the first 2 to 3 weeks. We do not suggest sealing the edge of the tiles. Tiles like travertine, slate and clay should. When you do grout a floor, work in one area at a time it is a lot easier to clean grout off before it starts to go off so work in a small area at a time, usually around a metre square of floor or wall.
