Can I use water based varnish over oil based varnish? Answer: In most cases, it is OK to use a water-based polyurethane
Polyurethane
Polyurethane is a polymer composed of organic units joined by carbamate links. While most polyurethanes are thermosetting polymers that do not melt when heated, thermoplastic polyurethanes are also available.
Is deck stain oil or water based?
Oil-based deck stains tend to work better in hot or cold extremes, and with most woods. Water-based stains work well on woods that have natural oil, or wood that has previously been stain with oil-based products. The chart below is a quick reference comparing oil and water-based stains.
Can you put polyurethane over old varnish?
Short answer: yes, you can apply wipe-on over previous varnish. Whether it'll work well in this specific case nobody can say, you'll have to try it and see. But following the basic prep guidelines it'll usually work fine. It isn't as simple as just wiping on the Minwax product over the existing varnish.
What's the best outdoor finish?
Outdoor Finishes
- Simple to Super Durable. Outdoor finishes have one thing in common; they all require maintenance. ...
- Exterior Oil. An exterior oil finish is definitely the simplest, quickest way to treat an outdoor project. ...
- Exterior Varnish or Urethane. ...
- Epoxy with Exterior Varnish. ...
- Sources. ...
Is polyurethane oil or water based?
Water-based polyurethane is technically a misnomer since polyurethanes are an oil-based product. Water-based polys use an acrylic resin just like water-based paints. This resin is hard but doesn’t provide the same protection as the oil-based resin which is far more resilient to wear and especial heat.
Can you put oil based varnish over water based polyurethane?
The straightforward answer is no. Oil based polyurethane and water based polyurethane do not mix. This will be a problem if you want to add a top coat of oil-based urethane (or any other type of oil) over water-based urethane, because the two types of finish will repel each other and not accept a bond.
Can you varnish over water based varnish?
Can a water based varnish be applied over a water based stain? In simple terms yes. Care must be taken however when applying the first coat of varnish over the stain.
Can you put oil based over water based?
Let's break it down. You cannot use water-based paint on top of oil-based paint. You can use oil-based paint on top of water-based paint. You can use a water-based primer on top of an oil-based primer.
Can you use polyurethane varnish over water based varnish?
Yes, you can polyurethane over varnish without damaging the finish. This is so because it's hard-wearing, long-lasting and durable, and with a high resin value, which allows it to resist harsh outdoor conditions.
Can I put oil-based clear coat over water based paint?
Oil-based polyurethane will not bond to water-based paint. Be sure to select a compatible water-based polyurethane finish, or flaking will result.
Can I put varnish over varnish?
Whatever product you want to use, as a general rule, you will have to completely remove any existing varnish, waxes, oils, wood stains, dust, dirt, grease, uneven areas and sticky stuff before applying a wood varnish.
Whats the difference between oil based and water based paint?
Oil based paints use mineral turpentine in the makeup of the paint solvent, while water based paints use mainly water in their solvent. Oil based paints give off a strong odour which is that typical paint smell. It is flammable and can have harmful effects on human health.
Can you put Danish oil over water based stain?
Often we ask about specific products when they haven't been named in the Question but it doesn't matter in this case — any oil-based finish, including straight oil, blended finishes like "Danish oil" and "Tung Oil Finish" (note: doesn't contain any tung oil!) and all types of oil-based varnish will work equally well ...
Which is better oil based or water based varnish?
Durability. Oil-based polyurethane is more durable than his water-based alternative since it contains a significant amount of Volatile Organic Compounds (VOCs). Those chemicals make the finish tougher and allow it to last longer.
Can you put oil based varathane over water based varathane?
If you already laid down a water-based finish and decided to go for an oil-based one, do not fret. With a little bit of extra time and preparation, you can apply the oil-based finish right over the water-based one.
Can you use water based topcoat over oil based topcoat?
Yes! But you must follow ONE simple rule to ensure the best possible finish: the underlying finish must be absolutely dry. When using a water-based product over an oil-based product, such as water-based High Performance Topcoat over oil-based Gel Stain, wait 72 hours before applying the water-based product. When using an oil-based product ...
Can you mix oil based and water based products together?
OTHER RULES TO REMEMBER. You cannot mix water- and oil-based products together. General Finishes Enduro-Var Urethane Topcoat can only be used over raw wood or General Finishes water-based wood stains or dye stains. Enduro-Var cannot be used with any oil-based product, sanding sealer or shellac.
How long does maple oil dry?
I prefer to leave the base coat of oil air dry for at least 2 weeks. With the difference in weather it can vary widely.
Can you put water based finish over oil based finish?
Water-based Finish over an Oil-based Finish. Woodworking Myth: You should never put a water-based finish on top of an oil-based finish. Jim Carroll explains why it’s 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 Benefits of Using Water-Based Primer
Using water-based latex primer under your oil-based coat may give you the best of both worlds. Latex paints are often easier to handle, while oil-based paints can give you a luminescent look and a more water-resistant finish. The good news is you can paint oil paint over a latex primer. Here are some reasons many choose to use a water-based primer:
Why Painters Choose Oil-based Paints
So, if latex paints are more user-friendly, why would anyone actively choose the more difficult and smellier oil-based option? Here are a few facts about oil-based paints that can make their use worthwhile:
How to Paint Oil Based Paint Over Water Based Primer
When you are painting with a water-based primer, make sure you follow the manufacturer’s instructions as there can be slight differences in your primer’s application and drying time. Here are the general steps to follow when you use oil-based paint over water-based primer:
Related Questions
While it is not necessary to add a topcoat immediately after your primer dries. However, you do want to paint over your primer within a few weeks’ time so that your paint will bond properly with the primer. Over time, the primer will begin to deteriorate if left on its own.
