I have a vinyl floor (tested neg for asbestos) in a bathroom. I am remodeling, and plan to put down porcelain tiles over backerboard.
I am able to scrap off the vinyl layer, but there is a paper backing and mastic left. I bought some Sentinel 747 cleaner, and it looks to be promising. Once I get it down to the 3/4" plywood, will I be ok using Hardiebacker (1/4") over thinset without any additional steps? Or do I need a rinse step? Thanks.
Best Answer
I have not used this brand on my job but once I have removed all the mastic I would clean the floor with water then I allow the floor to dry overnight and start installing my backboard and tile. If I was gluing another floor I would do a rinse with a cleaner. Hope this helps and saves time and money.