WebIf you are using nitrocellulose lacquer or oil-based varnishes other than polyurethane, such as Waterlox or any alkyd varnish, you can safely use the waxy amber or clear 3-lb. cut. If you’re using oil-based poly or any water-based finish, stick with SealCoat. If you’re up for it, you can also mix your own shellac using dewaxed shellac flakes. WebOct 27, 2024 · STEP 3: Sand your wooden surface and brush or wipe on a coat of shellac. Properly sand the surface of your piece and wipe with a dry cloth to remove any dust. Shellac can be applied with either a ...
Shellac as Undercoat for Polyurethane - wwch.org
WebJul 27, 2015 · 2 Answers. Sorted by: 1. Dewaxed shellac is unusual in being compatible with both water- and oil-based finishes, and in fact is sometimes used as an "adapter" … WebJun 8, 2024 · As to put something over waxed shellac, the topcoat needs to be mixed. Water-based poly can’t mix with other chemicals, and instead, it sticks to it. Likewise, waxed shellac can’t adhere to poly. Thus, it is not recommended to put water-based poly over waxed shellac. Although if it’s urgent, you can apply dewaxed shellac on top of the wax. dangschat t.o.h. gmbh \u0026 co kg
Can you put shellac over top of polyurethane?
WebMar 22, 2016 · I've gained a lot of experience since asking this question, and can confirm basically all of the answers below: Don't use shellac outside, lol. Not by itself, over anything, or under anything either. Even under e.g. polyurethane (say as a binder coat), any chip in the poly or any water gets in and it'll destroy the finish and spread rapidly. WebMar 25, 2024 · Shellac vs Polyurethane: Ease of Application. Both finishes are equally easy to apply. With shellac, it’s best to use a natural-bristle brush. Polyurethane, on the other hand, should be rolled out with a roller. Water-based polyurethane, however, can be sprayed on because it’s so thin. WebNov 13, 2024 · After you sand it, remove the dust. Apply the Polyurethane – Once the finish is clean and sanded, seal it. For outdoor shellac surfaces, use oil-based or exterior … dan grzywa american family insurance