LumberJocks

Oil poly last coat

  • Advertise with us

« back to Finishing forum

Forum topic by MB100 posted 11-02-2021 04:08 PM 414 views 1 time favorited 8 replies Add to Favorites Watch
View MB100's profile

MB100

5 posts in 92 days


11-02-2021 04:08 PM

Topic tags/keywords: finish top coat oil poly bubbles walnut

I have 4 Coats of Oil Based Poly over walnut table top

Looks great.

There are just a few very tiny bubbles here and there.

Looking for advice on last coat.

Thinking of light sanding with 320 and then wiping on 1:1 poly to mineral spirits.

It’s a gloss finish.

Thoughts?


8 replies so far

View LeeRoyMan's profile

LeeRoyMan

2394 posts in 1067 days


#1 posted 11-02-2021 04:13 PM

I guess I’ll just have to take your word for it.

View Fred Hargis's profile

Fred Hargis

7361 posts in 3833 days


#2 posted 11-02-2021 04:27 PM

If it looks great why don’t you stop where you are????

-- Our village hasn't lost it's idiot, he was elected to congress.

View Kelly's profile

Kelly

3899 posts in 4284 days


#3 posted 11-02-2021 06:21 PM

Yeah, a small patch of lint free cloth and one last coat, or two, or three should be fine and will go toward hiding the air bubbles.

They go on light, so dry quick and you can get another coat on before you get to the point of having to sand.

Be really light on the scuff coat. Just enough to get it to opaque, and call it a day.

View OSU55's profile

OSU55

2942 posts in 3329 days


#4 posted 11-03-2021 12:28 PM

I would use 600 to denib, then lightly scuff the whole surface with gray very fine scotchbrite.

View Mattew123's profile

Mattew123

35 posts in 205 days


#5 posted 11-05-2021 10:50 AM


Yeah, a small patch of lint free cloth and one last coat, or two, or three should be fine and will go toward hiding the air bubbles.

They go on light, so dry quick and you can get another coat on before you get to the point of having to sand.

Be really light on the scuff coat. Just enough to get it to opaque, and call it a day.

- Kelly

I agree with this approach

View Rich's profile

Rich

7754 posts in 1929 days


#6 posted 11-05-2021 01:22 PM


Yeah, a small patch of lint free cloth and one last coat, or two, or three should be fine and will go toward hiding the air bubbles.

- Kelly

It might “go toward” hiding the air bubbles, but it’ll never get there. The only way to hide them is to remove them.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

View Kelly's profile

Kelly

3899 posts in 4284 days


#7 posted 11-05-2021 02:03 PM

That’s true, if they’re big. Tiny bubbles are less problematic. They’ll fill just like the cells of wood do, with several coats.

Of course, back to what you said, it may take minor sanding between coats, since you’re building on the surrounding surface with each new coat.

View sunnybob's profile

sunnybob

98 posts in 105 days


#8 posted 11-05-2021 02:13 PM

I would sand the bubbles out and start again in those areas. Start with a thinner mix and add lots of coats slowly to build those sites back up to the surrounding finish. An air bubble will always show through if its on a finished visible surface, and you will feel bad every time you look at it.

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com