Shellac waxed vs dewaxed. Companies supplying ready to use shellac disappeared one after another until only zinsser remained. Also advice on filtering or making your own. The answer to your question would depend upon what you are using the shellac for. It doesnt cost much more and its not any harder to obtain or use.
Seeing its market disappearing zinsser bulls eye with the help of some woodworking writers turned shellac into a sealer even introducing a dewaxed variety sealcoat that was marketed for use under polyurethane. To address that problem zinsser created sealcoat a dewaxed shellac meaning it has the wax removed. I buy blonde shellac and tint to whatever i need. Thats why you see sealcoat advertised as a universal sanding sealer on the can.
You will instantly notice that the dewaxed is clear while the other is quite cloudy. Dewaxed shellac has the advantage of being able to be used under all top coats. Use sealcoat or other dewaxed shellac. It sticks to just about anything and just about anything sticks to it.
Pour some dewaxed shellac into a glass jar and pour some shellac with the wax in another and look at them side by side. If shellac is the final topcoat is there anything wrong with using non dewaxed shellac for the seal coat and all subsequent coats. Dewaxed shellac is a universal sealer. Are there any other advantages to using dewaxed besides the adhesion advantages.
Most all finishes adheare to it and it adheares at most all finishes. A representative at zinsser told me that although they are still producing sealcoat a poor shellac crop has driven the prices up and many customers have turned to cheaper alternatives. Ive read that dewaxed shellac is more water resistant than non. Question im finishing some birch cabinets and have been testing how amber shellac works.
Waxed versus de waxed shellac advice on which topcoats are compatible with amber wax containing shellacs and which require clear de waxed shellac. Waxy shellac isnt like teflon stuff sticks to it though not quite as well. What is the advantage or disadvantage of the waxed product vs. I am assuming this is for woodworking since mixing finishes are mentio.
The great majority of flaked shellac users are interested in using shellac for wood finishing. I too have seen minor adhesion problems with waxy shellac. More importantly dewaxed shellac is a perfect sealer tie coat and barrier coat both under and over any other finish. Dewaxed fri nov 13 2009 354 pm i read somewhere also that dewaxed doesnt develop watermarks as easily as the waxed so that may be something to consider in a kitchen setting.