Replies

1. 
   JulienBoivin | Feb 19, 2006 10:33pm | #1

   Here's what my Zinsser Shellac can says: DON'T use under polyurethane....

   Julien the happy woodworker

   At least my workbench understands me...

1. 
   HowardAcheson | Feb 20, 2006 04:58am | #2

   >> DON'T use under polyurethane

   So, I don't see the point.  Is there a question?

   Zinsser shellacs contain their natural wax which means that waterborne finishes and oil based polyurethane finishes will not adhere well to it.  If you use those finishes you must use a shellac that has been dewaxed.  Zinsser makes a product called Sealcoat.  Sealcoat is a 100% dewaxed, 2# cut of blond shellac and can be overcoated with waterborne finishes and oil based polyurethane.Howie.........

2. 
   71Atlas | Feb 20, 2006 10:40pm | #4

   Thank you for the info.

   I just read the small print on my can of Bulls Eye Shellac and it says "don't use under polyethane finishes"!

   When all else fails read the directions.

2. 
   SteveSchoene | Feb 20, 2006 05:29am | #3

   If you want a varnish top coat you can use a traditional resin varnish over any shellac, just no poly.  The traditional resins (alkyd or phenolic) will be clearer than the poly anyway.