Ask anyone who chases shower leaks: the inside corner is where waterproofing fails. It's the spot where you're hand-folding membrane or banding into a tight three-way junction and hoping the fold seals. FloFX NoFlo Inside Corners take the hope out of it — they're pre-formed to fit the concave inside junction perfectly, so every corner gets the same consistent, watertight shape.
They bond exactly like the rest of the system — fleece-backed, thinset-applied with full mortar transfer — so a pre-formed corner becomes part of the continuous membrane rather than a patch on top of it. Drop one into each inside corner, band the seams and changes of plane, and you've turned the trickiest part of the job into the most reliable.
Use them with NoFlo banding and the NoFlo membrane to waterproof the whole shower, tied into a FloFX bond-flange drain. The 2-pack covers a standard shower's inside corners; the 10-pack is for bigger layouts and contractors running multiple jobs.
Pro tip: Press the corner fully into the junction and work the thinset for complete transfer into the fleece — no bridging at the crease, no dry spots. Lap your banding over the flanges of the corner so every edge is sealed into one continuous surface.
