If the spots only occured on the thrid coat, then you can probably sand
the last coat off. As long as you don't sand through all the poly
layers, you won't affect the stain.
Did you do anything to the surface in between the 2nd and 3rd poly
coats? How big were these spots? are they all in one area, or evenly
spread out? How many spots do you have? Are they close together?
First I am sorry I mispelled the word "powder". The spots cover around
5% of surface and look like a white film that appear in a dozen or so
places.I called MinWax and they told me it is probably moisture trapped
underneath the third coat. Though I really doubt where the moisture
came from since I rubbed poly in full sun on sunny day and temerature
was around 66F.
- posted on May 3, 2006, 7:32 pm
I'm wondering if the cotton rags could be the issue? But it looks like
it would have showed up after the first coat....
I have had trouble handling stained wood with gloves that leaves tiny
little fibres in the finish.