moisture trap under water base poly - Contractor Talk - Professional Construction and Remodeling Forum

RomZes13 · 04-29-2009, 07:32 AM

After 3rd coat of water base poly I got some milky spots on my floors. I stained my floors 3 times, waited a day or 2 to dry, then I applied wbp(from zinsser, not bulls eye)
It says on the can I can apply poly directly on stain without any sealer.
After 2 coats of poly floors looked beautiful, after 3d got some milky spots, foggy. Usually it happens rear, only 1 spot in a whole house, and 1 more coat would make it disappear, but it didn't happens this time. I tried denatured alcohol (customer service told me to try it) and it didn't work =( I tried also goof off and some spots got better.
Anybody can help ?

the big 12 inch · 04-29-2009, 01:31 PM

You stained the floor 3 times!!!...WTF..WHY?

RomZes13 · 04-29-2009, 09:41 PM

I used ebony stain to get darker.

the big 12 inch · 04-30-2009, 06:52 AM

Quote:

Originally Posted by RomZes13

I used ebony stain to get darker.

Man,thats a pretty dark floor!!..I would guess that with all that stain you might of trapped some of the solids that did not dry completely that caused the finish to fog up...

ian@prosource · 04-30-2009, 09:53 AM

without seeing the floor, my guess is that with all the coats you have applied not all the coats have dried out, as a general rule the more coats you put on the longer you have to leave things to dry between coats,

each coat acts a little bit like a sealer to the wood floor, this reduces the absorbtion rate of the wood floor as each coat is applied, so things may be touch dry, but just under the surface moisture can still lurk,

you may have to re-sand and start again

Floordude · 04-30-2009, 03:19 PM

Quote:

Originally Posted by RomZes13

After 3rd coat of water base poly I got some milky spots on my floors. I stained my floors 3 times, waited a day or 2 to dry, then I applied wbp(from zinsser, not bulls eye)
It says on the can I can apply poly directly on stain without any sealer.
After 2 coats of poly floors looked beautiful, after 3d got some milky spots, foggy. Usually it happens rear, only 1 spot in a whole house, and 1 more coat would make it disappear, but it didn't happens this time. I tried denatured alcohol (customer service told me to try it) and it didn't work =( I tried also goof off and some spots got better.
Anybody can help ?

Stain is applied and then buffed off. It is not applied and allowed to dry.

One coat of stain is about as dark as it is going to get. The second coat does not make it any darker, if your applying and buffing off as your suppose to do. If your painting on stain, 3 coats, I can clearly see the adhesion concerns.

Either way, at this point, it is time to sand back to bare wood and start the learning curve, a little farther around the corner.