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Finishing out water based poly and applying poly to vertical surfaces

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Forum topic by Bill217 posted 10-19-2017 01:19 PM 335 views 0 times favorited 4 replies Add to Favorites Watch
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Bill217

2 posts in 31 days


10-19-2017 01:19 PM

Topic tags/keywords: water based poly verethayne vertical

I’m extremely new to top coats and wood finishing. My wife asked me to redo our kitchen cabinets so I purchased one of those Rustoleum Kitchen Transformation kits and went at it. I had read online that the topcoat that comes with the kit was not good quality so I went and purchased some water based Verethayne. The reason I went water based was because my kitchen cabinets are white and I did not want the finish to yellow with an oil based finish. I added some general finishes extender to keep it open a little longer to level out and it seems to be doing a good job.

My question(s) are 1)what is the proper way to finish off water based poly? I’ve seen online some people say to apply coats every 2 hours without sanding in between (since its a water based poly) and I’ve seen others say no matter what you should sand in between every coat. Also I see people stating after the last coat to use 0000 steel wool to polish it out and then follow up with some wax. I’m curious what the best way is to finish off my project, especially since its on painted cabinets (using latex paint)? I’m using a semi gloss top coat since its in my kitchen. I’m planning on putting 3-5 coats on the cabinets since I read water based poly isnt as strong as oil based poly. And 2) what would be the best way to apply the poly to my vertical cabinet frames inside? I’m worried about runs, especially since I added the extender. I’ve been using a good quality synthetic brush. Any help is greatly appreciated!


4 replies so far

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Rick_M

10455 posts in 2191 days


#1 posted 10-20-2017 12:51 AM

Follow the manufacturer directions. They have the most experience with the product and the most to gain or lose.

Recently I used a paint roller to apply waterbase poly and it worked well. I put on 3 coats, sanding between with 320, and then sanded the final coat with 600 grit and buffed with wax. Turned out great. I was going for flat or satin.

-- http://thewoodknack.blogspot.com/

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Bill217

2 posts in 31 days


#2 posted 10-20-2017 01:54 AM

You didn’t have issues with bubbles, etc using a roller? I’ve always heard foam brushes and rollers put oxygen in the poly and cause bubbles

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Rick_M

10455 posts in 2191 days


#3 posted 10-20-2017 02:45 AM

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Carloz

858 posts in 402 days


#4 posted 10-20-2017 11:07 AM

1 Times when water based polyurethane was not as strong as the oil basef are long gone.
2. It does not matter what kind of base is when it comes to sanding between coats. You always do it to gradualy remove al imperfections. If someone tells you not to do it for water based he probably never tried finishing anything.
3. It seems you decided to start your learning experience on a very large project. Nothing is wrong with that but be prepared to spend 12-15K on the kitchen remodeling you will want to fo immediately after refinishing :-)

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