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Can I apply a premixed product over a waterproofing membrane?

Ready-to-use tile adhesives such as MAPEI's Type 1 and Premium Mortar for tile and stone require a porous substrate to cure properly. They should not be installed over a waterproofing membrane.

Products

Type 1
Type 1
Premium Tile Adhesive Type 1 is a premium-grade, traditional, nonflammable,…
Premium Mortar
Premium Mortar
Premium Mortar is a premixed no-mess alternative to traditional thin-set…

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