as the paintjob looms closer i was wondering if anyone knows about spray guns, quite a few on ebay, question is are any of them any good?? whos the painjob guru ?
any info appreciated

not a guru
but have heard that best off going gravity fed (bottle on top of gun)
have had a bit of a look and good gun will cost around $150
cheap one will be round $50
money = quality of finish
hope this helps

I used what is known as a finishing spraygun. Cost about 70 dollars, but worked really well.
I wouldnt advise buying one off ebay, as you dont know if they have been cleaned out properly after use, which means paint may be stuck in important parts affecting the result that you will get at the end.
They are probably selling them because they are clogged up, its easy to make the outside look shiny!

Steve.

I used the finishing gun I got with the SIP compressor. It's not bad I reckon, but I've not used it a lot.
I think a gravity gun would be better for doing the roof etc, as I found the paint canister gets in the road.
No I wouldn't buy off one eBay, either. Go get a new one..

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

DaniDad..PM Low 'n' Blown, he has painted that many i have lost count, i'm sure he will be able to point you in the right direction regarding the choices available

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I got nuthin......................

actually i was meaning new one,s there are lots of new guns on ebay, just wondered if any of them were any good

i've got a prona LVMP and seems to work ok. It feels nice and balanced to. i'm using a 1.7mm tip but i think people recommend a 2mm for acrylic. Cost about 180.

I have been told that a gravity feed spray gun has to be used when spraying 2 PAK pait and Yes I think it would be easier to pait the roof with one.

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A Bloody Mini

1970 Mini K, 1380cc, 1.75 HIF SU, 30 70 Cam, 2" Zorts
1969 Mini K, Stock Standard and Orginal. (Slow as Hell)

I use a DeVilbiss Suction Feed Spray Gun - 1.8mm with 2 pak at work on the aircraft. These are really good guns but are well over $200-$300. As with any paint job though, 90% prep %10 paint. The person who said Paint hides a multitude of sins must of had really small sins, because in my experience if you have little mistakes on the prep work, you have HUGE mistakes in the finish!

Cheers
Gig

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67 Deluxe - Red and white
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Im my opinion it doesnt really matter whether you go suction or gravity feed. But that all of course depends on what you are doing.

Having never actually used a gravity feed gun, I wouldn't really know but I would say that they may be a bit better balanced and therefore a bit easier on the arm. Tthere's no pot on the bottom to get in the way (i think i should get a gravity gun just for that...or a pressure pot). Plus the gun may also use all of the paint in the pot unlike the suction ones where you always have a bit left in the pot, which is handy if you're doing smaller things

On the other hand you may be limited to what angles you can spray at with a gravity gun (again i dont really know as i havent used one).

As always though, it depends on the quality of equipment you use. I wouldn't rate myself as being all that good at spray painting but i get a pretty good finish off the gun that we have. It's not cheap though!!

Then just follow what the gun manufacturer/paint manufacturer recommends regarding nozzle size for the type of paint you are using.

Gravity feed ones will work better on lower CFM compressors (smaller ones) than the suction type. The suction type work a different way and rely on the pressure, well speed of air to suck the paint up. I would guess if your compressor wasnt quite up to it the finish may be inconsistent or just no good. Gravity feed rely on flow rather than pressure so better for smaller compressors.

I am no expert, but this link on Hotrodders.com has loads of info, not just on guns but all good stuff. Check out the FAQ on "How to paint a car myself". It all makes sense and will help a lot. At least, it's the info I'm going to be following in a couple of weeks when I paint the Clubman, along with another couple of good links (PM if you want them).

In NZ, there's loads of imported (and thus new) HVLP gravity feed guns which seem pretty good. I have one and it was a piece of cake to paint my subframe - easy to judge the feed etc and nice to handle. NZ$100 will normally score a good enough one for most people.

Incidentally, I doubt the difference between gravity vs suction guns depends on the compressor, since neither use much air, but a gravity feed gun requires slightly less. But nothing like what a DA sander or air wrench needs so all 2-3HP compressors will easily cope with spray painting.

I personally prefer the HVLP (High Velocity Low Pressure) Gravity feed guns. They require a smaller compressor and due to their low pressue you do get a haze of excess paint floating around your garage (well no where near as much as the other guns)

I got my gun from ebay ... the wholesaler was really good and because I asked nicely they gave me free delivery and the product is really good. The gun i bought cost me $55 and came with a 2mm head, which is good for acrylics and primer .....

The wholesalers ebay name is monniio ... i think they are out of stock at the moment, but send them an email and im sure they will sort something out.

Oh yeah im not affiliated with this person as Im in NSW and they are in VIC ... but i recommend them

CHOW

Lucas[/url]

Thats interesting because our HVLP gun requires a decent sized compressor. Our compressor is just on the limit of providing enough volume of air. It is my understanding that you require a greater volume of air. Maybe they can, but I didnt think smaller compressors would be able to provide more than about 13cfm, which for our gun at least, you need.

Just saw that you were talking about gravity fed HVLP, ive got nothing when it comes to them. I was talking about suction fed ones.

From Hotrodders.com:

An HVLP gun requires more VOLUME of air to operate (the V in HVLP, High Volume Low Pressure). Now you may notice that your HVLP gun is adjusted at maybe the same PSI as an old conventional gun, around 50 lbs at the gun (many HVLP guns are set at much lower though) so where is the “Low” in PSI they are talking about? It is at the actual air cap where the air and paint come out. An HVLP gun has only 10 lbs at the cap while a conventional has upwards of 50! So the VOLUME of air (CFM, Cubic Feet per Minute) is the key to proper atomization with an HVLP.

If you have a gun that requires 15 CFM you will need a compressor and plumbing that will produce that at a very minimum. There are HVLP guns that need as little as 7.5 CFM so you can get good results even from a smaller compressor. Air supply is a complete subject by it’s self so lets assume that you have the air supply needed and move on to gun set up.