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Mapei thinset with RSS Membrane

So I messed up and used Mapei large tile (modified) thinset for my shower pan membrane. However, I did use Laticrete Multimax Lite Tile Mortar for my corners, curb and banding around the rest of shower. I did a water test today and level stayed the same throughout the day. My main concern is the Mapei Large tile thinset that I used for primary membrane. My question is should I order a new membrane and put down a new layer or is it not the end of the world and all is well? I do have the pro series pan from RSS.


Thank you,


Jason S.

66 Views
Isaac Ostrom
Isaac Ostrom
Sep 13, 2022

Looking good! I think you are supposed to peel off the wonderboard labels but since they have the hydro ban over them they should be just fine!

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