Kilz and Vinyl Floor Tiles

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Old 07-06-16, 11:14 AM
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Kilz and Vinyl Floor Tiles

Hi everybody. I pulled up a cheap, crappy felt "floor" in a mudroom and there was a plywood subfloor. I want to lay down vinyl tile squares (not self-adhesive). So after cleaning off all the glue, etc. the plywood is sanded clean and smooth. Can I use Kilz as a waterproofing sealant on the plywood, prior to putting down the tile? Same question for a concrete section of this mudroom floor. Thanks so much.
 
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Old 07-06-16, 11:39 AM
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Welcome to the forums!

Why do you feel the need to 'waterproof' the subfloor? While most tile adhesive will adhere to sound paint, it's formulated to go over raw wood. Properly laid vinyl tiles should give the subfloor plenty of protection from moisture provided spills and such are mopped up in a timely manner.
 
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Old 07-06-16, 12:28 PM
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Hi Marksr,
Thanks for your info. The reason I asked is that everywhere I've looked online, the recommendation was to cover the plywood with a water-based urethane sealer prior to laying the vinyl tile squares. Since the water-based sealer seems to be hard to find for some reason, I decided to use Kilz, which I just happened to have. I'm testing the tile adhesion on the Kilz now, and so far it looks good.
In any event, thank you for replying.
 
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Old 07-06-16, 12:48 PM
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Kilz original, I hope. Kilz latex has known adhesion issues.
 
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Old 07-06-16, 12:54 PM
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I've never sealed the floor prior to installing vinyl tiles but I am a painter, not a floor guy ......
 
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Old 07-06-16, 02:39 PM
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I am a floor guy, and I don't recommend sealing a floor. The tiles may not stay down.
 
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