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The universal Wedi 320 thin-bed mortar, which is based on a hydraulic binding agent, is excellent for attaching and laying Wedi construction boards, as well as wall and floor tiles, both indoors and outside. It comes in a 25kg bag and is waterproof and frost-resistant. Consumption: 4 x 4mm grooves: ca 1.3kg/m2 6 x 6mm grooves: ca 2.2kg/m2 8 x 8mm grooves: ca 2.8kg/m2