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What is the waterproof material in the bathroom?

Waterproof building materials for toilets:

A, pouring reinforced concrete floor.

Second, 1: 3 cement mortar is used to find the slope layer, the thinnest part is 20MM thick, and the slope is floor drain, which is leveled at one time.

Three, Raybons acrylic polymer cement-based waterproof slurry.

Four, 30MM thick hardened cement mortar layer.