I recently shipped a project that I wrapped and used some Scotch tape to hold the wrapping paper in place.
The project was black walnut with six or seven coats of Minwax poly of rubbed on finish. The finish had cured for at least three weeks. The finish was applied over bare wood with no stain. The tape was in place for about a week.
When the tape was removed the finish peeled away down the the bare wood!
Was this unusual or to be expected? What could I do to increase the adhesion of the poly on bare wood?
I’m now refinishing the project!
Mike
Replies
improve poly adhesion
I am not a finishing expert by any means, but it sounds like there was something on the walnut before you started with the poly.
You might try wiping the walnut with acetone before re-finishing with poly. Test a extra piece first.
Forrest
You should let it dry for a longer period. Try on an extra piece first.
Mike,
Besides wiping the wood with mineral spirits or some other solvent, I mix up a fresh batch of shellac for a base coat before applying varnish.
Jack
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