3CorsaMeal
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Registered: 11th Apr 02
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Am thinking i might learn this, but ain't got a clue on it all.
have just done my tailgate with cans and it came out well, so want to learn spraying.
any advice would be good really.....like....
what sort of gun and compressor do i need?
do they plug into mains?
what sort of paint? keep hearing 2pac?
where to get paint?
how to mix it?
where to spray it? (got a double garage)
anything really................ 
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Davido
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Registered: 18th Aug 03
Location: Reading,Berks
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well garages use ovens and dust free rooms inur garage mate im guessing temp and the atmoshphere wouldnt give u a brilliant finish
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Davido
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Registered: 18th Aug 03
Location: Reading,Berks
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but ppl prob will beg to differ
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Davido
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Registered: 18th Aug 03
Location: Reading,Berks
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2pac is best quality paint tho, as for mixing depends on budgets body shop we use for work they have a machine which makes any colour for any car but it cost 4K !! i think if u took ur time ud be able to get a good quality finish doing it at home just practice as is everything
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Greg_M
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Registered: 2nd Sep 03
Location: Grantham, Lincolnshire
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garages use low bake ovans to speed up the process, but it is true about the dust.
[Edited on 02-04-2004 by Greg12v]
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broster
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Registered: 6th Dec 02
Location: Drives: E39
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quote:
Originally posted by daveyboyuk
but ppl prob will beg to differ
 
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Davido
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Registered: 18th Aug 03
Location: Reading,Berks
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ed
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Registered: 10th Sep 03
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Not all garages use ovens, cos fibre glass expands and contracts at a different rate to steel. This means that you can get cracks in the bodywork.
2pac paint is the highest quality. But as far as I know you will need to wear a full body suit, gloves and an air fed mask + you gotta have an extractor fan, cos the fumes that it gives off are prety toxic! Celulose paint is the next best alternative which you can do pretty safely in a garage
I got a Compressor and a spray gun from halfords. You gotta get a compressor with a pretty big tank, so you can continuously spray for a couple of minutes. The compressor I got cost about £150, its good cos you can run other tools off it and pump your tyres up using it too! I got the gun from halfords too, that cost me £40 and works pretty well. The compressor plugged into the mains.
I went to my local specialist paint shop to get the paint mixed up, the mixing equipment is verry expensive. The celulose paint I used was about £5 per litre, I think...
I was spraying up a few racing mountain bikes up, so I set up in an old stable in a barn on my farm. This meant I could hang stuff off of the ceiling, which was useful. You could easily do it in your garrage though, cos you can sweep it out and put plasic sheets down to stop the dust going everywhere.
All the rubbing dows was done by hand, or using my black and decker mouse, the finish cae up really well cos I slapped on loadsa laquer... Thats all I can remember!
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3CorsaMeal
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Registered: 11th Apr 02
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nice one mate, what was the make of compressor and gun? any features/spec to look out for?
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ed
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Registered: 10th Sep 03
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I think its SIP stuff. That might be my welder though . You want a pressur regulator and pressure gauge on the compressor. This is probably standerd equipment on most compressors though.
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Colour-Tec Coachworks
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Registered: 18th Dec 03
Location: Winners of Max Power Live 2004 - Best Bodywork of
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It doesnt matter that fibreglass expands on contracts... Its not the baking part that is important. What is important is...
1. Painting temperature
2. Air Changes
If you paint at the wrong temperature you get a poorer finish and in cold weather you run the rist of getting micro blisters in the paint finish, this is caused by the moisture from the cold, which gets trapped under the paint when its applied... No matter how many times u panel wipe the car, the moisture just keeps coming back and the killer is that u cant see it. When the paint drys/cures then after a few weeks the moisture trys to surface... the technical name is "micro blisters".
Some people say they use heaters to get the temperature right, well thats just as bad in a way because the gas used for heaters is made up with moisture, so in a sense you are putting moisture on a car by heating it up with heaters.
All cars should be painted to manufacturers specifications, which means the car should be at a constant temp of 17 degrees throughout the painting process. If you dont have a proper spraybooth/oven with high spec burners/heat exchangers, then this would be impossible.
The baking part of a spraybooth oven is only to speed up throughput... if it was as simple as usuing extractor fans and heaters, then nobody would pay 30k for an oven. I agree that you cannot put a car with fibreglass on a full scale bake cycle as the air in the fibreglass would surface... but you can run a very low bake and have no probs, this basically means istead of having a dry car in 40mins, it takes around 2 hours.
The air changes:
The more air changes a booth can make then the cleaner the paint finish. The booth we use has 6 air changes per minute, which is as powerfull as they come. Some people think that by using extractor fans they are doing well, well thats not the case because the fans in a booth are actually pulling air into the booth as well as out of the booth.
How it works:
The booth pulls the air from outside and its instantly heated by the 1,000,000BTU heat exchangers. The heated air is then pulled through the ceiling filters and down round the car to create a perfect clean air flow, the air is then extracted differently depending on the booth type ie, side extract, rear extract or floor extract. The very best booths are fully grided floors with floor extraction.
So to simply paint in an improper booth, doesnt cut the mustard. You WILL get dust and dirt in the paint finish, which will not polish out... regardless of whether u use a sperate room from sanding etc. Again if it was as simple as painting in home made booth, everyone would do it. But thats not the case, the best bodyshops use the best equipment, its that simple.
Then to top this off, not painting in a spray booth that conforms to regulations is breaking the law.
So paiting in a booth doesnt matter?... i think not.
[Edited on 02-04-2004 by Colour-Tec Coachworks]
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Colour-Tec Coachworks
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Registered: 18th Dec 03
Location: Winners of Max Power Live 2004 - Best Bodywork of
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I thought i better add that i meant that light heartedly... before anyone gets on their high horse lol.
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Corsa^Dan
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Registered: 4th Dec 02
Location: Sleaford, Lincolnshire
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1,000,000BTU - id check that mate thats fooking alot of KW.. ud need a fooking big heat exchanger todo that mate (im a plumber btw)
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Colour-Tec Coachworks
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Registered: 18th Dec 03
Location: Winners of Max Power Live 2004 - Best Bodywork of
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lol... nope that is exactly spot on mate
Im not joking lol
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