Tile over Kilz

[TxBuilder]

Are there any solutions/mastic out there to bind tile to a floor with several layers of Kilz sans striping the Kilz off?

 

[Ernesto]

Nuthin I know of. But the first question that comes to mind is why is there so much Kilz on the substrate? Could it be soaked with pet urine?

 

[BudCline]

No sure way I know of either.

 

[Ernesto]

You do know that using any stripper will get into the substrate possibly causing a bonding issue.

 

[TxBuilder]

You do know that using any stripper will get into the substrate possibly causing a bonding issue.

Wrong term, I meant manually scrapping it off.

The owner painted over the remaining vinyl tile glue several times with Kilz.

 

[Ernesto]

Sounds like a job for a scrapeaway machine. Unless you enjoy hard manual labor.

 

[BudCline]

Is this a wood or concrete substrate?
Are you going back with vinyl tile or ceramic tile?

If the substrate is concrete scraping off the Kilz shouldn't be a big deal. If the substrate is wood you wouldn't want to apply ceramic tile directly to wood anyway. If it is wood...the tile-backer can probably be applied over the Kilz without any problem assuming cement board is being used. Cement board does not have to bond to the substrate with the thinset, the fasteners do that. Cement board won't care that there is Kilz on the floor.

 

[Ernesto]

Is this a wood or concrete substrate?
Are you going back with vinyl tile or ceramic tile?

I was going to ask the same question Bud but I wanted to give Keith the benefit of the doubt as to his knowledge on substrates and ceramic tile install.