Reddit reviews Mapei Eco Prim Grip 3.5G Bond Promoting Primer
We found 1 Reddit comments about Mapei Eco Prim Grip 3.5G Bond Promoting Primer. Here are the top ones, ranked by their Reddit score.
You can use a primer like this one: https://www.amazon.com/Mapei-Prim-Grip-Promoting-Primer/dp/B01MXO9KMD
Then tile the base with some nice slate and do some decorative stone facing.