Laying Tile on a smooth cement floor that has a sealer

sbishop · December 01, 2011, 11:21:17 AM

Hi guys, we are in full reno's here at home base. Wife lost her garage to a rec room! ;)

The new entry way is about 9x9 area that will be tiled. i'm ready to install them but i thought i would ask about installing tile on smooth concrete that has a sealer that was sprayer on for protection 6 years ago (kinda shiny.

Should i rough up the cement in that area? if so, can i use my 7" grinder with a cement disk on it?

thanks for any input!

Sbishop

Raider Bill · December 01, 2011, 11:28:00 AM

How about a stripper? smiley_gorgeous

If your Wife doesn't like that idea then I would either etch the sealer or do some grinding. Your tile bond will only be as good as what you stick it too.

Paper Maker · December 01, 2011, 11:30:39 AM

I've got nearly the same problem. But mine has 6 year old paint on it. I hope you get a reply.

sbishop · December 01, 2011, 11:34:22 AM

Raider Bill, you have my attention.... :D

The sealer was just something the concrete guy spayer on the cement when it was curing, but i'm afraid its too smooth!

isawlogs · December 01, 2011, 12:55:36 PM

Raider you crack me up :D

Score the ciment before putting down your tile, you and da wife will appreciate it down da road. Using the grinder with very coarse grit would work , I would use a 36 grit and go for it.

D Hagens · December 01, 2011, 12:59:09 PM

Use a modified thin set, no need to strip the sealer

Paper Maker, strip the paint and then clean the concrete with paint thinner.

Raider Bill · December 01, 2011, 01:14:54 PM

Quote from: D Hagens on December 01, 2011, 12:59:09 PM
Use a modified thin set, no need to strip the sealer

Paper Maker, strip the paint and then clean the concrete with paint thinner.

Yep stripper

Don_Papenburg · December 01, 2011, 10:42:19 PM

Yep you can't beat a good stripper ,well you should not beat a stripper.
Def. clean the cement . If you have any cracks in the tile area use a crack isolator (like Noble Seal CIS ) Then use a modified thinset. Adheasives do not stick as well.