new to spraying....

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Forum topic by Estley posted 04-26-2011 02:38 AM 1128 views 2 times favorited 7 replies Add to Favorites Watch
View Estley's profile


65 posts in 3205 days

04-26-2011 02:38 AM

Topic tags/keywords: finishing

So my last couple of projects I’ve finished with wipe on poly, I like the look and the dificulty of screwing it up.. but it’s tedious… So I’m thinking about venturing into spraying. Some time ago a friend gave me a little detail spray gun, that I have yet to use, mostly because I have no idea of what finishes are “sprayable” etc etc…. any tips on how to get started?

7 replies so far

View cabs4less's profile


235 posts in 2183 days

#1 posted 04-26-2011 03:32 AM

well your going to have to find out wat size is the opening or the tip that tells you wat you can spray oil is the thinnest wit out adding thinner then laq then water based ( i generalizing here) try spraying just some reg brush on poly see if it comes comes out smooth if it splaters then you need to then it just add thinner till it sprays smooth and keep the ratio for later help the gun is probaly reg pressure so i would run it at 45-50 psi if it is hlvp drop down to 25-35 psi you can tell cause at high pressure hvlp turn into an air gun wit a mist and reg preesure at low pressure turns into a water hose wit no air I spray only laq and you can thin it just like oil and keep your ratio record i tend to thin my finish by bout 10% all the time because i get a better flow but that just deals wit your gun and srpaying technique i sugest just playin around on some scrap wit poly and laq thining as nes until you get smooth results i do this wit every new gun that comes in my shop and record all the info for ref

-- As Best I Can

View Pooky's profile


8 posts in 2697 days

#2 posted 05-02-2011 03:30 AM

When you decide to get invovled with spraying, Keep it simple. I use water base poly and never have had to thin it yet. I bought a inexpensive sprayer (hvlp)from harbor frieght and it is pretty easy to use.Like cabs4less said you have to play around with the finish, thats part of the fun of a new tool! The hardest thing is to get the pressures right so it comes out in mist and not spray to much so it runs like table legs. Now I spray water base stain with it and get great results. Oil was a pain for me,maybe not enough tolerance for the time to thin it out. You will be amazed with the results, just take your time when spraying. Forgot one thing use new/newer poly or run it threw a strainerto get the impureties out of it.

View Steven H's profile

Steven H

1117 posts in 2481 days

#3 posted 05-02-2011 04:18 AM

You do not want to be spraying oil based poly, spraying fast finishes like lacquer or shellac is not a problem, When they reach the surface they dry fast already. but when you spray oil based poly, you can get sag, runs.
Any finishes can be sprayed, as long as the air is properly adjusted and materials thinned down.

View Billp's profile


802 posts in 3621 days

#4 posted 05-03-2011 02:15 AM

Spraying oil can be dangerous if you don’t have the proper equipment. Spraying water based products will be much safer.get a good book on spraying should help you alot.

-- Billp

View Dark_Lightning's profile


2620 posts in 2530 days

#5 posted 05-03-2011 03:41 AM

I’d recommend against spraying oil, as well. I’ve had good results with water based finishes such as MinWax, even though they don’t recommend spraying. I was never really able to keep the brush marks or bubbles out of it when brushing. Get fantastic results by spraying.

Lacquer, now, I love to shoot, probably because it is so forgiving- that, and I’ve been painting cars on and off for over 25 years.

Any of these finishes pretty much require that you avoid inhalation, though I’ve painted many a car with lacquer in the open on a still day, with excellent results. I didn’t use breathing protection, then.

-- Random Orbital Nailer

View a1Jim's profile


115177 posts in 2998 days

#6 posted 05-03-2011 04:03 AM

To practice just use water in the gun and see how to cover properly . since most finishes will only be water base in the future. I would recommend using it. You might look into some General Finishes products.

-- Custom furniture

View Domer's profile


252 posts in 2787 days

#7 posted 05-03-2011 10:00 PM

I also want to get into spray finishing. What are some good books on it?


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