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10-01-2008 03:41 PM #1
Originally Posted by like2gofast
That's what I thought when I painted my S-10
Spraying the paint wasn't that hard, the surface prep was!
The truck turned out looking like s***!!! On the plus side I learned a lot of things "not to do" . Have since read several books on the subject, and bought better equipment to work with.
When my next project comes, I'm gonna be ready!!!
I ain't dumb, I just ain't been showed a whole lot! 
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10-01-2008 04:22 PM #2
I once painted a Chevelle (a lot o' years ago). I read all the books, removed chrome and trim, sanded and primed (primer looked real good). Prepared the surface for the final coat and shot the color. I used a compressor that was too small and could not keep up with the paint as it flashed.
It looked real bad.. I was very disappointed and at the time several hundred dollars poorer! In the end, I swallowed my pride and took the car to a shop where the guy immediately sized the situation and took care of my mess. I put the chrome back on and the car looked great. If I hadn't received orders to go overseas, got married and had four kids, I'd probably still have that car!
With the new HVLP guns (a good one is a Binks HVLP — Model SV100, about $150 from several on-line sources) , the minimum compressor size needs to produce 10cfm at +/- 40psi. More is better. The Binks gun needs 10-14cfm at 25-27psi. You have to have a compressor that keeps up with the gun or you will experience what happened to me - the paint will flash and as you lay on additional material it will be rough. The compressor needs to be a constant duty - 220 volt is certainly better than 110 if your shop is equipped with such.
The air needs to be very well filtered as well to keep contaminates from entering the gun (clogs up the works) or worse, splotching out with the material on the finish.
A spotless, well vented enclosure with gobs of finely filtered fresh air is a must. You can fabricate a "poor mans paint booth" using 1 x 2 wood framing and clear plastic with box fans and furnace filters. However, you need more than a respirator, you need lots of fresh air too because we do not want to read your obituary!
If you want to give it a go, look at this web site - http://www.paintforcars.com They have a great selection of material for substantially less money as well as a help section and a lot of customer testimonials. They have a wide selection of acrylic enamels, lacquers, and urethane clear coat finishes.
Good luck my friend!
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10-01-2008 04:33 PM #3
Every word of advice given to you above is absolutely the truth. Fact is, shooting the paint is the easiest part of the procedure, a trained monkey could hold the gun and shoot some color on a car. The tough part, as mentioned above, is the proper preparation of your car, making sure the paint is going onto as straight of a substrate as possible, and that it adheres.
Modern paints have made it easier, and with a little planning and a lot of prep work a novice can get pretty decent results. But he can also get one that turns out horrible too. I have painted for years, everything from car frames and other automotive items, all the way up to my '27 foot cruiser that I Imroned. I am not in the same league as Hotrodpaint, or some of the other really good painters on here, but I do know one end of the gun from the other. Even at that, I know my limitations. I will paint the running gear, but when it comes to large, flat surfaces like a car, I take it to a pro and let them do it for me.
However, don't let us scare you away from it. Do what the others suggest and get some education on the subject. The VoTech suggestion is a good one. I just had a Dupont rep in my office last week, and he also teaches body work at the local votech. He says they can't get enough students to make a class some times, and the equipment is there to use if you take the course.
Don
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10-03-2008 05:15 AM #4
It's all in the prep work. That seams to be the re-acurring statement.
Originally Posted by Sinister
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10-03-2008 05:56 AM #5
OK - compressor. The biggest you can afford. Mine is not huge, but does have the cfm rating, which is the buzz word along with duty cycle. If you buy a 60 gallon tanked compressor but it only has a 35% duty cycle, it wont last long. A 30 gallon with a 100% duty cycle will run all day at full output. Be very careful of the units you get at the big box stores. My first one blew and they replaced it with a bigger better.
DO NOT use your lubricator and DO NOT use the air hose that you used with it as there still might be some oil carry over.
As far as a dryer, a 50 foot run of copper or cleaned black iron with a couple of valved drip legs seem to work the best. DO NOT use PVC. It will fracture plus has no cooling value. At the end of the line, add a pretty good air dryer. I have a cheapo Harbor Freight as a pre-filter to knock out any crud, then a Sharpe for final clean. I'll post a photo later - it works.http://i70.photobucket.com/albums/i8...irfilters1.jpg
I'll dig up my copy of the book(s) and give you better information - mine came from Border's. The best IMO, one is the book on the left and by Motorbooks Workshop, ISBN 0-7603-1583-3 http://www.motorbooks.com/.
http://i70.photobucket.com/albums/i8...Paintbooks.jpg
A Campbell Hausfield gun will probably do fine for primers. I've had good luck with my Devillbiss Finishline 3, but really love my Iwata LPH 400 photo here - but too much $$ for casual use. http://i70.photobucket.com/albums/i8...hild/Iwata.jpg
To do one car, a full face mask with a charcoal cannister MIGHT work for you. I had to buy a supplied air system as I found that I am allergic to the clears and epoxies. This stuff is nasty - iso cyanates (cyanide ??) - in sufficient quantities can mess up your lungs forever - and each individual has a different tolerance level. I vote for the supplied air system. Mine is a low end Hobbyaire
Colors - for a newbie - stay away from highly metallic paints, especially silver - that is unless you like tiger stripes. The orange that I used is very forgiving but you do need light gray or white primers under it as it will take more coats to cover then they say
To answer Sean's question - filler can always be sanded but it gets harder as it ages. It just takes more sandpaper
Last edited by IC2; 10-03-2008 at 05:59 AM.
Dave W
I am now gone from this forum for now - finally have pulled the plug
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10-03-2008 08:26 AM #6
Thanks a lot pard, you've been a great help. A virtual plethera of statistics. No but seriously, thanks
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10-03-2008 08:28 AM #7
Did I mention having the right guns for the day/materials/temperature/humidity/etc
Originally Posted by like2gofast
Bill S.
PS: Hopefully you saw the my other posts in regards to paint the last two days
Instead of being part of the problem, be part of a successful solution.






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