I am in the process of rebuilding a new ceramic shower stall. I am receiving mixed signals on using thin set versus mastic. I know the floor tiles must be set using thin set but what about the shower walls. I plan on using MasterBlend Thin Set Mortar mixed with Acrylic Mortar Admix for the floor. The ceiling was done using Acrylpro Mastic. The mastic container says it is also good for shower walls or any where there won’t be standing water. I do like the easy in using the premixed mastic over the thin set. I think the sticking ability of the mastic over the thin set will be a plus for installation of the wall tiles but I don’t want to cut corners and end up with another problem in a few years. What are some of your feelings? The walls are hardi board over felt tar paper.
Red Oak, Texas