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Best polyurethane finish for HVLP spraying

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Forum topic by Scott Landry posted 06-29-2014 02:40 PM 810 views 0 times favorited 10 replies Add to Favorites Watch
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Scott Landry

52 posts in 158 days


06-29-2014 02:40 PM

Topic tags/keywords: hvlp polyurethane linseed oil question

I’m sorry if this is already covered, but I can’t seem to figure out how to search just the finishing forum on this subject with my Ipad.

Anyways, I have a Fugi HVLP turbine sprayer and have been using water based General Finishes High Performance and I like the way it sprays, dries fast and good durability, buy I was hoping to get acquainted with a different poly that sprays as well out of the can, but will darken the wood like a traditional oil based poly. Any suggestions? Or should I just apply a coat of boiled lindseed oil to darken the wood before applying the water based General Finishes?

-- Every project is an opportunity to acquire new tools and any solution that requires buying a new tool is the correct one.


10 replies so far

View Fred Hargis's profile

Fred Hargis

1886 posts in 1181 days


#1 posted 06-29-2014 02:59 PM

You would need an oil based varnish, although a few of the waterborne finishes have added a slight amber coloring to their product to achieve the same thing. Anyway, spraying an oil based finish is kind of a headache. The finish dries so slowly that any overspray can settle and then cure on everything, and it’s so hard to clean up it becomes a real problem. Your solution of using BLO is good, and will work but you need to give it a little extra dry time before applying a waterborne. But that would sure be my approach before I tried spraying an oil based varnish.

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

View Gene Howe's profile

Gene Howe

5771 posts in 2116 days


#2 posted 06-29-2014 03:25 PM

While I agree with fred and the OP re: BLO before the water based poly to achieve a warmer look, I’ve not had any problems with oil based poly/varnish in my el cheapo HVLP sprayer. Clean up is a bit more of a hassle but the spraying is OK.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

View Fred Hargis's profile

Fred Hargis

1886 posts in 1181 days


#3 posted 06-29-2014 03:51 PM


While I agree with fred and the OP re: BLO before the water based poly to achieve a warmer look, I ve not had any problems with oil based poly/varnish in my el cheapo HVLP sprayer. Clean up is a bit more of a hassle but the spraying is OK.

- Gene Howe

If I implied it’s difficult to spray, I didn’t mean to. It’s the cleanup part that makes me avoid spraying it.

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

View AlaskaGuy's profile

AlaskaGuy

715 posts in 997 days


#4 posted 06-29-2014 04:16 PM

I agree with Fred and Gene. I sprayed oil based poly one time, never again. Everywhere the over spray lands with be a mess to clean up.

-- Alaskan's for Global warming!

View Gene Howe's profile

Gene Howe

5771 posts in 2116 days


#5 posted 06-29-2014 04:20 PM

Sounds like we all need a booth.
In my space, it would need to be portable and collapsible. Which introduces another set of hassles.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

View NiteWalker's profile

NiteWalker

2710 posts in 1265 days


#6 posted 06-29-2014 04:29 PM

+1 on no more oil based poly spraying for me. The overspray leaves a crust on everything it touches, and drying times are super annoying.

My current favorite is general finishes enduro clear poly over a couple of coats of sealcoat (which darkens the wood as you desire). General finishes enduro var is another water based poly that’s great. It’s visibly amber in the can, and will darken the wood too.

-- He who dies with the most tools... dies with the emptiest wallet.

View jtm's profile

jtm

148 posts in 324 days


#7 posted 06-29-2014 05:15 PM

All you need is General Finishes Enduro-Var.

Very similar to High Performance, but adds the warmth of oil.

I sprayed it on this maple table top:

View Scott Landry's profile

Scott Landry

52 posts in 158 days


#8 posted 06-29-2014 07:16 PM

I was thinking of the enduro-var as a possible solution. I think I will try that before the BLO idea. Thanks.

-- Every project is an opportunity to acquire new tools and any solution that requires buying a new tool is the correct one.

View RogerInColorado's profile

RogerInColorado

294 posts in 642 days


#9 posted 06-30-2014 05:20 AM

+1 on Enduro Var. It even sands like a dream.

View WhoMe's profile

WhoMe

1120 posts in 1931 days


#10 posted 06-30-2014 06:12 AM

Another recommendation for Enduro-var . Several coats on qs white oak really warmed up the project.
But, I did find it requires a slight thinning for it to spray like the high performance. Like 5 to 10 percent Max.
I used water and it made spraying and the thinned coats going on much smoother. I have the Rockler hplv btw.

-- I'm not clumsy.. It's just the floor hates me, the tables and chairs are bullies and the wall gets in the way.. - Mike -

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