Not at all stupid because you cant put waterbased varnish over boiled linseed oil. Jim Carroll explains why its not only acceptable to use a water-based finish over and oil finish provided you do it correctly but that it can be the best solution when you want to bring out the natural character and color of the wood.
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However oil-based varnishes typically have a natural amber tint and often become more yellow over time.
Can you put water based varnish over oil based stain. This is because the curing process for oil is polymerisation and polymerised oil is akin to resin. Can you apply water-based polyurethane over oil-based. If possible it is always best to use an acrylic-based varnish for water-based paints and oil-based varnish for oil-based paints to.
Water-based varnishes are an exception to this rule. Water based over oil stain is fine---but poly is not the best finish IMHO. If you wish to change from a water-based to oil-based deck stain or vice versa here are some suggestions.
Id like to use a water-based polyurethane over a staircase I stained last night with a Sherwin Williams oil-based stain to avoid yellowing. If some parts have waterbased applied first and other parts have oil base first - the latter will come out darker or deeper in color. The beauty of all our water-based sealers and topcoats is that theyll level and adhere to whatever solvent- or oil-based stain youve used.
Oil-Based VS Water-Based Stain Advantages and Disadvantages It will be easier to select the right stain if you understand the oil-based Vs. If you wait for the oil-based stain to properly dry cure its no longer oily. Can be spot repaired does not look like plastic poly is a form of plastic.
Can I apply water-based polyurethane over an oil based stain. Non poly varnish is better. Spray varnish or lacquer should be fine over the stainremember a lot of light coats are generally better than a few heavy coats.
You cannot mix water- and oil-based products together. You can apply water-based polyurethane over oil-based as long as you set suitable conditions for this to happen effectively. Enduro-Var cannot be used with any oil-based product sanding sealer or shellac.
General Finishes Enduro-Var Urethane Topcoat can only be used over raw wood or General Finishes water-based wood stains or dye stains. You should remove grease dirt and wax by scrubbing the surface with a wood prepcleanerde-glosser or mineral spirits and synthetic steel wool. In most cases it is OK to use a water - based polyurethane over an oil - based finish in good condition.
In most cases you can safely apply varnish over an oiled piece of wood because the varnish contains oil as well. However the curing time can be several days especially with an open-grain wood such as oak where the stain can sit uncured deep in the pores. The instructions on the can will indicate that you can apply a water-based clear coat right over an oil-based stain if the stain has thoroughly cured.
Plus to get the best stain you can follow our other content about the best deck stain. Look for an oil-based varnish and read the package directions to ensure that it is compatible with an oil finish. You can also use mineral spirits.
And actually the answer is YESyou can use our EMTECH water-based sealer or top coat over the oil stain. When using a water based topcoat over an oil based stain allow oil based finishes such as Java Gel Stain to dry at least 72 hours before coating with a water based topcoat. Ultimately understanding the advantages and disadvantages is very important to choose the right.
The stain has to be fully dry and the surfaces cleaned of all stain residue. Oil base should adhere ok over waterbased providing there isnt a big build up of waterbased. Play it safe and seal the stain with shellac.
This can distort the colors of the item you have painted. Waterbased poly doesnt change the color of the wood any but oil base does. Also Know can you put water based varnish over oil based varnish.
The stain was color matched to our new hickory floors which are stained a medium-dark true brown no yellow. But you can go over boiled linseed oil with oil based varnish-- thats the type of varnish that says on the can clean brushes with white spirit. You should never put a water-based finish on top of an oil-based finish.
Ensure that you remove dirt grease and wax from the surface by scrubbing the surface using a wood cleaner or de-glosser.
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