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Forum topic by NorCalQ posted 10-06-2013 06:15 PM 986 views 1 time favorited 11 replies Add to Favorites Watch
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17 posts in 1796 days

10-06-2013 06:15 PM

I’m test spraying some waterborne poly. When it goes on, should is end up looking a little orange peely or should it look smooth? To get it to look smooth, I have to lay it on rather thick. More air? More material?

11 replies so far

View 404 - Not Found's profile

404 - Not Found

2544 posts in 2992 days

#1 posted 10-06-2013 07:08 PM

Sounds like you may need to either thin the poly or your flow is too high. What kind of HVLP system are you using?

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17 posts in 1796 days

#2 posted 10-06-2013 07:16 PM

It’s a Capspray CS9100, 4 stage HVLP. I’m using General Finishes Hi Performance water based poly. Doesn’t seem very thick to me, but what do I know.

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17 posts in 1796 days

#3 posted 10-06-2013 08:17 PM

Actually, it levels out nicely, thanks to the foregiving nature of poly I suppose. Does the poly really need to be thinned? Should it go on like glass and stay that way?

View distrbd's profile


2252 posts in 2469 days

#4 posted 10-06-2013 10:37 PM

Lower your pressure and thin down your poly a little ,spray thin overlapping layers .

-- Ken from Ontario, Canada

View rrww's profile


263 posts in 2136 days

#5 posted 10-06-2013 11:33 PM

A lot of waterbase doesn’t “flow – out” quite as fast as solvent based products, if its flowing out and drying nice, you don’t have to worry.

View NiteWalker's profile


2737 posts in 2600 days

#6 posted 10-07-2013 02:37 AM

That’s typical of waterborne poly; it’ll look a bit orange peelish, but if sprayed properly, will flow out beautifully.

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

View NorCalQ's profile


17 posts in 1796 days

#7 posted 10-07-2013 03:05 AM

Thanks for the info. It’s my first time spraying, so I was flying blind. The only other sprayer I’ve ever used was an air brush and that was always color, not clear. Spraying clear was tough, not seeing what I was spraying and all. Now that I know I’m on the right track, I’ve got two bathrooms worth of cabinets to refinish, so wish me luck. Thanks for all the help!

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17 posts in 1796 days

#8 posted 10-07-2013 03:09 AM

By the way…how do you spray on vertical surfaces? If you’re laying down a a coat on the thick side, how do you keep sags from forming?

View Jokker78's profile


136 posts in 1720 days

#9 posted 10-07-2013 03:17 AM

Lots of light coats. I just sprayed a book case. I laid about six light coats

-- Measure once, cut , measure again, cut and damn its still to short

View Shawn Masterson's profile

Shawn Masterson

1325 posts in 1971 days

#10 posted 10-07-2013 12:22 PM

don’t thin. back off the material flow, and practice.

View CharlesNeil's profile


2410 posts in 3893 days

#11 posted 10-07-2013 12:42 PM

Shawn has it right, dont thin, back off on the fluid. You want a slightly white/bluish look when you are done spraying , this will tell you ,you are wet enough for a good level and flow out. If it looks a little “striped” dont worry, as long as you can look across the panel and the sheen is even your fine. Texture behind the gun is normal, the finer the texture the smoother it will lay out, the bluish tint is still an excellent indicator your wet enough.

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