Show off Your Handcrafted Projects. It's Free! Start Sharing

How To Apply Water Based Finishes

author-gravatar Sean Mar 06, 2016

Water based finishes for the most part can be applied like their oil counterparts but require a few extra steps and precautions. Check out the video or the step by step images below.


Photo of How To Apply Water Based Finishes
Photo of How To Apply Water Based Finishes

Step 1: I sanded my sample boards with 80, 120 and 180 grit sand paper on my random orbit sander.

Photo of How To Apply Water Based Finishes

Step 2: Pour the finish through a paint strainer into a secondary container to keep your finish clean and free from dust. I'm just using a cheap paint strainer that I picked up at a local harbor freight.

Photo of How To Apply Water Based Finishes

Step 3: To apply the Endurovar, I used a 4 inch wide foam brush. You can also use a synthetic brush to apply these water based finishes as well. The key with fast drying finishes is to get the finish on the surface and to leave it alone. It's going to start drying as soon as it's on the wood so if you continue to wipe the board with the foam brush, you are going to leave brush strokes that are going to be visible and will require quite a bit of sanding to remove. Get it on the surface and leave it alone. If you see something you've missed, don't worry, you can get it on the next coat.

Photo of How To Apply Water Based Finishes

Step 4: When applying a water based finish, it's going to raise the grain of the wood, causing it to feel rough. Some people will pre-raise the grain by getting the surface wet with water and then sanding the surface smooth before applying the first coat of finish. I, on the other hand, let the first coat of finish raise the grain. I feel the pre-raising the grain is a waste of time since the first coat of finish will raise the grain AND seal the surface. Now if I were applyinh a water based stain or dye, I would absolutely pre-raise the grain because you really don't want to sand the stain/dye after it dries.

So after this first coat of finish dried (about 2-4 hours), I sanded the surface smooth with 320 grit sandpaper. It's important to not sand too much or you will notice the second coat will actually raise the grain again. Just sand until it's smooth and stop.

Photo of How To Apply Water Based Finishes

Step 5: To remove the dust from the surface after sanding, I wet a paper towel with water and wipe away the excess. Since the finish we are using is water based, the water on the rag won't hurt anything. Of course you don't want to soak the surface, get the paper towel just damp enough to remove the dust.

Photo of How To Apply Water Based Finishes

Step 6: It's pretty much rinse and repeat on applying additional coats of finish followed by sanding with 320 grit sand paper. This second coat really starts to build the finish as the first coat essentially just seals the surface. I will apply a total of 3-4 coats depending on the amount of protection I need. 

After 7 - 10 days I will come back and lightly sand the surface using a white scotch brite pad and wax to remove any dust nibs picked up during the final coat.

0 comments

No comments yet. Why not be the first?

You need to be signed in to leave a comment. Don't have an account? Join now

2