Can I use Ultra-Flex 2 mortar to put tile up a wall in the bathroom?

Question

It is not in the shower, just a bathroom wall, and I already have the cement board up. Will Gravity make the tile fall off the mortar?

Answer 1

After multiple thousands of sq. ft. of tile installed; I want to assume you've asked about a Brand name; not strictly describing the substance. MORTAR most often relates to a cement like mix.

In my installations I set my first course; often allowing it adequate dry time; then proceed to buil upward.

Gravity is an obvious issue in Science. Tile is affected more by that; as it includes shear weight. Each course of tile on top of another; using spacers; applies weight and strain to the course below it.

Without knowing at all the recommendations for that brand, or CLAIMS the manufacturer makes on the label or otherwise; you might want to know those issues first.

I installed 16 x 16 tiles throughout my entire bathroom, floor and walls, I braced each course and allowed it set time, before installing the next course above. With 4 or 6 inch tiles that's less an issue. With any that are smaller, and bonded together with a mesh backing, you may not have a problem with falling away from the wall, but some minor "slippage" is still possible.

Steven Wolf

It's not uncommon for wall tiles to be set using a mastic, more like Liquid Nails.

Answer 2

Yes I sell this brand. The 1st answer is very good advice for the installation!