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| HVLP Spray Painting https://www.rypn.org/forums/viewtopic.php?f=1&t=23088 |
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| Author: | Richard W. [ Fri Jun 01, 2007 5:18 pm ] |
| Post subject: | HVLP Spray Painting |
All, Who is using a High Volume Low Pressure paint system? What has been your experiences? Seems like this system doesn't like the heavier coatings. Also for those who are using this what make of equipment are you using? Thanks, Richard |
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| Author: | Mr. Ed [ Sat Jun 02, 2007 3:37 pm ] |
| Post subject: | Re: HVLP Spray Painting |
I used a hobby gun from Eastwood to paint the chassis on the N6B with thinned paint and it came out really great! As a matter of fact just an hour or so ago I walked around the chassis and it still looks good! And this with a single coat! The gun is part of a two gun kit that I bought a few years ago for $99.99. Keep in mind it is a gun for the hobbyist not for the professional that would be using it daily. Later! Mr. Ed |
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| Author: | David Johnston [ Sun Jun 03, 2007 2:21 am ] |
| Post subject: | Re: HVLP Spray Painting |
I use a Binks Mach 1 HVLP gun, usually with a 2 quart or 2 1/2 gallon pot. The paint manufacturer usually provides guidelines for the spray paint equipment. For the Awl Grip paint we usually use, they recommend a #91 or 92 fluid nozzle, #54-4382 fluid needle and a #93P air nozzle. They also recommend a viscosity of 21 seconds, measured using a #2 zahn viscosimeter. The viscosity is critical, and I usually run a little higher than the recommendation, maybe as high as 23 seconds. This gives a little more surface roughness, but reduces the chance of runs. The viscosimeter came from e-bay at a very reasonable price. We are very satisfied with the results of the HVLP gun, but it is diffcult to compare as our paint systems keep changing to keep up with air quality regulations. The one thing of note is that it puts out less paint than our old gun, a Binks #62, so it takes longer to paint a car. |
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| Author: | Dave [ Sun Jun 03, 2007 8:34 am ] |
| Post subject: | Re: HVLP Spray Painting |
I tried HVLP electric and air guns of a the low cost variety and was not impressed with the result. I am now using Harbor Freight quart guns got on sale for under $20 and, surprisingly enough, they are working just fine with industrial and automotive coatings. I found the HVLP frustratingly slow. I don't know if a higher priced professional HVLP system would be better - never had that luxury. If overspray is an issue, use rollers and brushes. dave |
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| Author: | Fred T [ Sun Jun 03, 2007 10:34 am ] |
| Post subject: | Re: HVLP Spray Painting |
I've done some. Been using a Devilbiss Finish Line gun. I'm real happy with the gun. One of the big disadvantage of the system is the air requirement. You need a compressor that will supply a minimum of 15 gpm, which means a 240 volt unit. For heavier paints, you need the large nozzles, which use even more air. The Autobody store has a series of paint and body articles, written by a man who has spent his life in the business. http://www.autobodystore.com/basics.htm The articles under basics of basics are a good starting point. Fred Wichita |
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