3436Leach's Profile

the mastic used to adhere tiles is an organic compound and mold loves it! do not use this below grade!!!! concrete is like a sponge pulling moisture from the ground and to the warmer heat of the basement. this causes 2 major issues- first MOLD!!! second, when exposed to water for extended periods of time mastic can re-liquify!! do yourself a favor and avoid mastic anywhere theres potential for damp conditions. yes, that means your bathroom tiles as well- dont listen to the guy at the big box hardware store...... its not ideal for shower enclosures.