MinWax Wipe-on poly problem


I have problem with applying MinWax Wipe-on poly. I put two coats of MinWax oil based stain on cherry doors. Then I put three coats of wipe on poly using cotton rugs. Two coats went very well but the third one gave very bad white power like spots. Just couple of days before I finished another portion of cherry doors also with two coats of stain followed by three coats of wipe on poly and everything was fine. The problem with white power like spots with poly application is already second time that happens to me. Last year I had the same problem with finishing pine nightstand. I don't know why this happened and how to remove it. Is there any solution that allows removing poly without damaging stained wood? Any help would be appreciated.
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Sasha wrote:

little... swastikas?
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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?
Mitch
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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.
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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.
Ron T
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