My husband is restaining our kitchen cabinets. After he got finished with the stain and it was dry, he started putting on a coat of clear polyurethane, and after giving a couple of doors a coat of it, he noticed that they were turning a milky white. If anyone could please tell us why, we would really appreciate it. Thank You! Msbb45What would make a clear polyurethane turn a milky white when putting it on over a newly stained cabinet?
It sounds like the Poly soaked up moisture from either the wood in the doors or stain. You normally see this when a hot container is set on a table surface. The moisture is sucked up into the clear coat.What would make a clear polyurethane turn a milky white when putting it on over a newly stained cabinet?
It's because polyurethane is an organic material noted for high abrasion, ozone, corona and radiation characteristics.
Try clear lacquer instead.