How to remove thinset from plywood subfloor. Best way to remove thinset from plywood underlayment reply 10 on. Amazing hack using simple tools to quickly and easily remove the mortar left behind from the tile. With all the tile up we were left with our plywood subfloor covered in thick patches of dried thinset. Removing thin set off plywood can take many hours if you do it with a chisel or a flat bar.
However there is a much more efficient way to do this. If you are still left with thinset that you cant get off you can use rough sandpaper either by hand or on a power sander to grind down to the wood. November 20 2012 0619 pm this is a case where taking up the plywood isnt an option. Learn how to quickly and easily remove thin set mortar grout from plywood by following this video guide.
You will likely need to use a sharp edged scraper or thinset removal blade to get at tough bits of thinset that are difficult to remove from the plywood subfloor.