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spray painting


gavin.starr

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just after a bit of advice from the main spray painters ive decided to sack off using aerosol cans now as they cost too much.

 

im looking at buying a compressor but was wondering what is the best volume to go for. i dont do anything major but i would like to do some larger projects and would just like to see what people would recoment i get before i go and buy the completley wrong thing.

 

thanks

 

gav

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To be semi serious about using air tools etc you'll need something like a semi-decent belt driven 2 to 3hp one with about 100 litre tank and that can supply 9cfm and upwards. Most air tools take a lot of air.

 

This looks ok http://cgi.ebay.co.uk/Quality-AIR-COMPRESSOR-Workshop-9-CFM-Belt-Driven_W0QQitemZ110283806276QQcmdZViewItemQQptZUK_Air_Tools_and_Compressors?hash=item110283806276&_trksid=p3286.c0.m14&_trkparms=72%3A1688%7C66%3A4%7C65%3A12%7C39%3A1%7C240%3A1318%7C301%3A0%7C293%3A1%7C294%3A200

 

If its JUST going to be for a little touch up spraying then you could go smaller..... but a lot of high quality touch up spray guns still need a decent volume of air, something like 4 to 5 CFM at 40psi. A small compressor will struggle to produce this and even one with a decent sized tank will have you stopping to allow it to build up pressure again.

 

This looks ok for just touch up spraying http://cgi.ebay.co.uk/Rand-Air-Compressor_W0QQitemZ330325423307QQcmdZViewItemQQptZUK_Air_Tools_and_Compressors?hash=item330325423307&_trksid=p3286.c0.m14&_trkparms=72%3A1688%7C66%3A4%7C65%3A12%7C39%3A1%7C240%3A1318%7C301%3A0%7C293%3A1%7C294%3A200

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i wass looking sat something more like this

 

http://cgi.ebay.co.uk/50LTR-2HP-ELECTRIC-AIR-COMPRESSOR-BRAND-NEW-BOXED_W0QQitemZ370188400809QQcmdZViewItemQQptZUK_Air_Tools_and_Compressors?hash=item370188400809&_trksid=p3286.c0.m14&_trkparms=72%3A1689%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318%7C301%3A0%7C293%3A2%7C294%3A50

 

do you think that it would be ok for doing the random odd jobs or is the hp a bit low, im not after going into it propperly just a bit of fun really to expand away from aerosol cans.

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I've got a 50 litre 2hp airmaster compressor which does the job, not really suitable for spraying a full car in one go but fine for spraying individual panels.

 

The actual flow rate you can get is not always what the manufacturers specify. :blink:

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Im not really sure about exactly what size is needed, because the one we've got at work is a massive vane compressor. But you need a pretty big tank to use any sort of air tools/ spray gun, the other little one we've got at work (£100 from netto jobbie) just isnt up to the task. Oh and dont forget about a regulator

 

Also something to take into account is chances are you will be wanting to use 2k paints as you need them to air dry, so you have to start thinking about masks as well

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Not heard anything about this? even though the majority of body shops are using water based base colours, you still need 2K lacquer over it, or it runs off first sign of rain;):D

 

 

:D

 

Solvent based colour is being phased out but you will still need 2k laquer. If you plan on spraying 2k please get a good airfed mask as this stuff is not very good for you.:)

You will need quite a big compressor to run a gun and mask.

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Mmm dont laugh i ask my wife to get me for my birthday something for spraying my bits for my car fed up with cans take to long to dry so she got me from argos a EARLEX SPAY STATION HV 3000 £ 73 on page 137 two years ago its brill not joking still used it in fact i did to day for someone skirts they was impress with the finish

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:D

 

Solvent based colour is being phased out but you will still need 2k laquer. If you plan on spraying 2k please get a good airfed mask as this stuff is not very good for you.:)

You will need quite a big compressor to run a gun and mask.

 

Isnt it true that you cant spray a whole car in solvent, but you can spray parts of a car? And ye definately need a mask as well, i think our work one was around £170, and then you need a gun........ the list goes on lol

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Isnt it true that you cant spray a whole car in solvent, but you can spray parts of a car?

 

No:blink: You can spray the whole car if you have the paint, Its a stupid european law on emissions that is making solvent based paint get phased out. If you can still get it (still easy to get)

then you can use it. Its really only aimed at big bodyshops that use more than x amount of solvent products.

Dave:)

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Its a fallacy that all 2K paints are isocyanate based, quite a few are not, and for hobby use, i would and do just use a good quality mask, defiantly use air Fed if you are going to spray on a daily basis, but otherwise you are not going to get poisoned doing small jobs.

Isocyanate's are accumulative, and build up gradually over a long exposure period, i know people in the trade who don't even use a mask for touch ups etc, and they have been doing it for 15 years, and are still healthy.

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Its a fallacy that all 2K paints are isocyanate based, quite a few are not, and for hobby use, i would and do just use a good quality mask, defiantly use air Fed if you are going to spray on a daily basis, but otherwise you are not going to get poisoned doing small jobs.

Isocyanate's are accumulative, and build up gradually over a long exposure period, i know people in the trade who don't even use a mask for touch ups etc, and they have been doing it for 15 years, and are still healthy.

 

 

And after about 25 years in the game they die:p I know of two sprayers who had this attitude and nearlly made retirement.

Its up to you but I always wear a mask, Sometimes when spraying basecoat I don't and spend the rest of the evening making whatever colour I have been using Bogies:D

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And after about 25 years in the game they die:p I know of two sprayers who had this attitude and nearlly made retirement.

Its up to you but I always wear a mask, Sometimes when spraying basecoat I don't and spend the rest of the evening making whatever colour I have been using Bogies:D

 

Oh don't get me wrong, i always wear a mask, but like i said if you're just doing odd bits of hobby spraying, its not necessary to go to the expense of buying an air fed mask and bloody great compressor to run everything.

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Oh don't get me wrong, i always wear a mask, but like i said if you're just doing odd bits of hobby spraying, its not necessary to go to the expense of buying an air fed mask and bloody great compressor to run everything.

 

 

Very true. Its just best to advise safety even if you don't follow it..:D

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So.. being that i have access to a large compressor and spray gun at my folks, which ive re-sprayed a few things with (mainly farm macheinery lol)

 

Do you think its a good idea if i try spraying a spare bonnet i have silver? Ive never sprayed two pack paint before (silver + laquer) - any suggestions/tips?

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So.. being that i have access to a large compressor and spray gun at my folks, which ive re-sprayed a few things with (mainly farm macheinery lol)

 

Do you think its a good idea if i try spraying a spare bonnet i have silver? Ive never sprayed two pack paint before (silver + laquer) - any suggestions/tips?

 

Yes! two to start with, preparation is everything, and practise first;)

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So.. being that i have access to a large compressor and spray gun at my folks, which ive re-sprayed a few things with (mainly farm macheinery lol)

 

Do you think its a good idea if i try spraying a spare bonnet i have silver? Ive never sprayed two pack paint before (silver + laquer) - any suggestions/tips?

 

Yeah, save the bonnet :)

 

Pop down a scrap yard and get a few spare panels, and get used to prepping and spraying. Get some paint from your supplier on the cheap, usually mixed for customers, stuff like that...and just play till you get a good finish.

 

EDIT : Get yourself a nice decent gun as well

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Its up to you but I always wear a mask, Sometimes when spraying basecoat I don't and spend the rest of the evening making whatever colour I have been using Bogies:D

 

It is great fun especially after a high flake metallic, come out all glittery :p

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