I've never seen or heard of Dry Loc. Apparently it's a painters thing. However I do do a lot of tile. I have yet to see a bag of thinset that says it will stick to anything sealed. We grind sealers off concrete when we encounter the stuff.
Not sure what you mean by type 2 thinset. (Mapei Ultraflex 2?)
The best way to waterproof a wal is by using stuff made for that under tile. TEC's Tripleflex is awesome stuff. Schluter Kerdi. Nobleseal TS. Custom's Redguard.Laticrete 9235, or blue 92. Merkrete's Hydroguard. This list could go on a long time but It's late and I think I made the point? Use stuff made for tile. |
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