Polyurethane Over Shellac? - Painting - DIY Chatroom Home Improvement Forum

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Old 12-03-2009, 11:46 AM   #1
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Polyurethane over shellac?

Would I run into trouble applying either oil or latex based polyurethane over shellac?

Thanks... Chuck


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Old 12-03-2009, 12:16 PM   #2
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Polyurethane over shellac?

It depends if it is a de-waxed shellac or not.
De-waxed would provide a good base for polyurethane.
Regular shellac will most likely cause adhesion problems.


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Old 12-03-2009, 02:16 PM   #3
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Polyurethane over shellac?

the shellac is only acting as a sealer. It could be water or oil based. Best to use oil with oil and water with water.
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