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Sun, Mar 29, 09 at 20:04
| I sprayed satin polyurethane I purchased from a craft store, no idea if it is oil or waterbased, on a strip of wood painted white with painted stenciling. It turned yellow before my eyes by the time I got to the third coat. I thought polyurethane was not supposed to yellow. Was I mistaken? |
Follow-Up Postings:
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- Posted by bobsmyuncle (My Page) on Mon, Mar 30, 09 at 6:32
| Yes, you were mistaken. Oil-based polyurethane "ambers." |
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- Posted by sombreuil_mongrel (My Page) on Mon, Mar 30, 09 at 20:20
| Water based poly can pull sap or stains out of wood and appear to be yellowing. In that case it would not be the varnish, but the wood. Casey |
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