Discuss How to use a trowel on top of a tanking membrane in the UK Tiling Forum | Tile Advice Forum area at TilersForums.com

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aenaos

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Hi everyone, I'm a DIYer with a week's training how to tile. I am about to tile my shower. I plan to use a tanking kit first such as the MAPEI one. My question however is, would the trowel scratch the surface of the cured membrane, causing a breach and negating any waterproofing done?
 
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Tiberiu

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Don't worry about scratching the waterproofing paint. Just don't apply to much pressure when you trowel the adhesive. The paint is strong enough to withstand the normal trowel pressure.
 

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