Will my small air compressor run a paint gun?
#1807531
04/20/15 08:24 AM
04/20/15 08:24 AM
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Joined: Jan 2003
Posts: 17,918 Akron, Ohio
ProSport
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I want to paint the hood of my Duster satin black affordably. I have a Harbor freight 2.5hp, 21 gallon, 125 psi air compressor.
Which cheap spray gun from Harbor freight would work with my air compressor? Also what kind of paint should I buy? Any other tips I need to know? Thanks!
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: Will my small air compressor run a paint gun?
[Re: ProSport]
#1807612
04/20/15 11:44 AM
04/20/15 11:44 AM
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That Eastwood paint looks awesome but it might get expensive depending on the amount of cans. I'm actually doing the hood, scoop, tops of fenders, tops of doors, and up around the drip moulding like some Dusters are painted. Last year I got talked into doing it all in black Plastidip, what a joke that was, took alot of cans and looked like crap. My family had a plastidip peeling party yesterday.
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: Will my small air compressor run a paint gun?
[Re: ProSport]
#1807630
04/20/15 11:58 AM
04/20/15 11:58 AM
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herkamer
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For a project that small, the compressor should keep up. CFM is really the biggest consideration, so start with a full tank of air. Your biggest challenge will be the hood, and if you can break the rest into several small projects you should be able to manage the air temps and moisture content. Definitely get a moisture filter right at the gun.
As far as paint, SEM Trim Black seems to be a good choice. It has a very low sheen and only needs to be reduced 1:1. Make sure everything is extremely clean, and you'll need to scuff the paint so the black will stick. Wash with dish soap, wax and grease remover before and after scuffing.
Matt 69 Dart Swinger 340 83 W350, Megasquirted with 46RH Old news: 72 Demon street/race mobile Latest: 70 Duster backhalf car and even more
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Re: Will my small air compressor run a paint gun?
[Re: ProSport]
#1808000
04/20/15 07:36 PM
04/20/15 07:36 PM
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Joined: Jul 2013
Posts: 1,272 Northern Calyfornua
Sxrxrnr
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http://t.harborfreight.com/professional-automotive-hvlp-spray-gun-kit-94572.html?utm_referrer=https%3A%2F%2Fwww.google.com%2F
You might look into a complete hvlp system. They can be quite inexpensive and likely do a much better job for you.
Some examples from Amazon. Be certain to evaluate those suitable for auto painting.
.http://www.amazon.com/Best-Sellers-Home-Improvement-Power-Paint-HVLP-Sprayers/zgbs/hi/497500
Do a google search on:
Low volume, low pressure automotive paint systems
Last edited by Sxrxrnr; 04/20/15 07:40 PM. Reason: Additional info
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Re: Will my small air compressor run a paint gun?
[Re: ProSport]
#1808217
04/20/15 11:49 PM
04/20/15 11:49 PM
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Posts: 17,918 Akron, Ohio
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So what exactly is the difference between a conventional spray gun and an HVLP system? Is the HVLP an electric sprayer or is it powered by an air compressor?
Also, when I buy the paint, what kind of thinner or reducer do I need, does it matter what brand? How do I know how much of it to add to the quart of paint. Or do I need a gallon of paint?
Sorry for all the dumb questions, I've raced my whole life but never painted anything.
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: Will my small air compressor run a paint gun?
[Re: ProSport]
#1808222
04/20/15 11:54 PM
04/20/15 11:54 PM
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Joined: Mar 2005
Posts: 1,373 Rancho Cucamonga, CA
D_C
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Conventional paint spray guns spray / atomize paint using higher regulated air pressure.
HVLP (High Volume Low Pressure) spray guns operate at a reduced regulated air pressure.
There are HVLP Spray Guns that use compressed air. Harbor Freight sells those too.
As for how much reducer or additives to mix in, the paint manufacturer will have recommendations. This can be affected by humidity, temperature, etc.
As for how to learn about painting techniques, etc, there is lots of advice on the Internet and YouTub, etc. You might consider getting a book or two on automotive refinishing.
Cleanliness and surface preparation are extremely important. There are Lots of tips and tricks on doing everything correctly, you just need to seek the information and spend some time studying the subject.
You may want to practice on something else (even a smooth piece of cardboard) first.
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Re: Will my small air compressor run a paint gun?
[Re: ProSport]
#1808226
04/21/15 12:02 AM
04/21/15 12:02 AM
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Joined: Jan 2003
Posts: 17,918 Akron, Ohio
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What does HVLP mean? What are the benefits?
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: Will my small air compressor run a paint gun?
[Re: ProSport]
#1808236
04/21/15 12:16 AM
04/21/15 12:16 AM
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Posts: 1,037 Texas, Dallas
G_T
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High Volume Low Pressure. The single biggest benefit is less over spray - which means less mess, and conservation of expen$ive paint. They can give better results - but really, there is more to a good/experienced painter... YMMV
Need to watch for too small of compressors as they can really heat up the air since they are working hard and put more moisture in the lines = Bad. Get a good filter and water trap hard mounted as far from the tank as you can as well as the gun.
1970 Charger - V10, 6spd, Alterkation, Street Lynx 4 Link, Moser Dana 60, Wilwood 14" disks, Forgeline 18" Wheels (Rear:335's), ISIS Multiplexing Wiring http://www.v10mopar.com
2012 Charger SRT8
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Re: Will my small air compressor run a paint gun?
[Re: ProSport]
#1808275
04/21/15 12:55 AM
04/21/15 12:55 AM
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Awesome, thanks for all the great info guys!
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: Will my small air compressor run a paint gun?
[Re: ProSport]
#1808397
04/21/15 07:30 AM
04/21/15 07:30 AM
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Joined: Jul 2013
Posts: 1,272 Northern Calyfornua
Sxrxrnr
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A hvlp complete system which includes a turbine to create air pressure avoids many of the issues that plague a conventional air compressor driven system, such as moisture in the air supply. Each has its place, however for what you seek, a complete hvlp system is likely the ticket. . Do some research online and view some U tube videos to get a proper feel for them. Can be obtained for quite modest costs. Check these out to give you an idea of a quite good but moderate cost system. Cheaper solutions abound with a bit of research. http://www.tptools.com/TP-Tools-HVLP-Turbine-Paint-Systems.html
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Re: Will my small air compressor run a paint gun?
[Re: ProSport]
#1809044
04/21/15 10:57 PM
04/21/15 10:57 PM
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Joined: Jan 2003
Posts: 6,531 Jacksonville, FL
Chris2581
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It will work just fine. I painted my car using a simi;lar compressor from Sears back in 1982 in a open carport. Get a HVLP gun from Harbor Freight and go for it!
Nautilus Racing- We use Superformance gaskets and Turbo Action converters/products.
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Re: Will my small air compressor run a paint gun?
[Re: ProSport]
#1809053
04/21/15 11:05 PM
04/21/15 11:05 PM
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Joined: Jan 2003
Posts: 17,918 Akron, Ohio
ProSport
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Thanks again guys, great info. I think on my tight budget I'm gonna lean towards a cheap conventional spray gun with a water filter, and a quart or gallon of the 'SEM trim black'. I think my friend might even have the gun and filter I can borrow.
Roe, I've read some of that thread before, the results of some of those rolled paint jobs is amazing. I need to get this car done very soon and don't want to try anything new again. Good idea though.
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: Will my small air compressor run a paint gun?
[Re: ProSport]
#1809859
04/23/15 12:13 AM
04/23/15 12:13 AM
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Joined: Jan 2003
Posts: 17,918 Akron, Ohio
ProSport
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Thanks, I'm gonna go shopping at Harbor Freight real soon unless I borrow my friends setup.
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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