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Old 08-16-2005, 06:54 AM
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spraying small amounts of epoxy

So I just ordered some SPI epoxies, can't wait to get them. I got 2 quarts of black, and a quart of white (in case i decide to mix some gray for a final epoxy later before my base).

As i have said before, I am working very slowly, and will be spraying small amounts of epoxy each time I add a new panel or clean something up.

In this case, I am wondering how easy or annoying it is going to be to mix up small amounts of epoxy, I have a devilbiss finishline gun, and i was wondring how it will work if I only put a bit of paint in it each time? SPI epoxy mixes 1:1 so getting the proportions right is easy, but what about the gun working with such little amounts of paint. Ill probably end up wasting a fair bit just to keep it full enough.

Thanks,
Mike Walsh

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Old 08-16-2005, 07:05 AM
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I'll asume the gun is gravity feed.
Should be no problem especally if you use the "bag" in the gun that D'ville is known for.Makes clean up a snap.
A syphon gun is another story,as you will always have paint left in the cup due to it's needing enough material in the cup to keep the tube submerged.
I use pint mixing cups for small jobs.
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Old 08-16-2005, 07:17 AM
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Got to local paint store and get a couple of quart and pint mixing cups.
That will be the easiest way to mix and remember epoxy goes alot further than clear so mix less to Begin with and if needed you can always mix more so you don't waste.
With HVLP primer gun (1.4) I mixed a pint total and two coats on vette door and when done I dumped a fair amount out that was left over.

It won't be a hassle but just play with it till you figure out usage.
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Old 08-16-2005, 07:30 AM
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From an aggravation standpoint on cleaning spray guns, NAPA sells a spraybomb kit, that you put your epoxy paint in the bottle, and it sprays like a regular spray can. They cost about $8.00, but I use more than that in thinner cleaning my gun. You CAN even wipe it out and throw a small a amount of thinner through it to clean it and use it again, if you want to. 2 oz. of thinner vs. a ton. I always use a ton of thinner cleaning my guns. Seems like a waste, but it was a lesson learned from ruining a gun.
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Old 08-16-2005, 09:30 AM
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Preval?

Quote:
Originally Posted by Beenaway2long
From an aggravation standpoint on cleaning spray guns, NAPA sells a spraybomb kit, that you put your epoxy paint in the bottle, and it sprays like a regular spray can. They cost about $8.00, but I use more than that in thinner cleaning my gun. You CAN even wipe it out and throw a small a amount of thinner through it to clean it and use it again, if you want to. 2 oz. of thinner vs. a ton. I always use a ton of thinner cleaning my guns. Seems like a waste, but it was a lesson learned from ruining a gun.
Hi

Balkamp stuff is just being re-introduced to the Canadian market, so I don't have computer access to pricing on all part numbers.
Based on the the $8.00 price tag, I presume that you're talking about the "Preval" unit?

The illustration (Item "B" in the attached pic) is P/N BKP 770-5030, which looks like a spray bomb up top, then possibly a propellant charge in the middle, and then has a clear graduated (glass?) jar on the bottom.
770-5031 is the "power pack" listed to fit this, which I pesume is a CO2 propellant cartridge?

Is this the unit you are describing above?
If so, does it spray fairly decent ... good results?

If these are decent, they may be just what I'm looking for as well. I plan to spray several assorted colors of Endura (2K) on frame and chassis components. Rattle-can enamel just won't survive down there.

The other thing that I was cosidering was a siphon-fed "touch-up" gun with a small cup.
Don
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Old 08-16-2005, 11:43 AM
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I have used the prevail bottles alot,, back before I retired [ha ha ha thats a joke] we installed alot of aluminum extrusions, and the prevail bottles worked great for touchup or even complete painting for a few pieces,, another bottle I have found that works good are the bombs sold by harbour freight , which can be pumped up from your compressor, saving you the cost of new propellent canisters on the prevail bottles,
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Old 08-16-2005, 06:16 PM
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H.F. Spray bomb

I have one of these things, and they work pretty good. Cleanup fairly easy, spray pattern not bad. Material needs to be fairly thin though, as thick stuff just won't work well. I used it last week with some latex house paint, and cut it down about 3:1. worked ok after that.see this

Last edited by pumpkin35; 08-16-2005 at 06:18 PM. Reason: forgot url
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Old 08-16-2005, 08:21 PM
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There's quite a few ways to spray minor amounts without buying a large air compressor, as a kid my first airbrush kit ran off of a hose attached to a spare tire. I'm sure if a person had a large enough tank or tire and also a small tire inflator compressor to pump it full with they could easily run a touchup gun off of the air supply long enough to prime a panel or two. I wouldn't try doing a complete though
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Old 08-16-2005, 09:03 PM
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Compressed Air Spray bomb

Hi again,

I've never seen that "Harbour Freight" brand in Canada, but the product description from the link that "pumkin35" posted sounds a lot like the item "F" atomizer in the picture that I posted previously.

I ordered one of those Preval things today, should have it tomorrow.

Perhaps I'll see how available that atomizer is, and order it as well. If nothing else I can use it for WD-40 and / or engine degreaser.

Don
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Old 08-16-2005, 09:04 PM
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Quote:
Originally Posted by baddbob
as a kid my first airbrush kit ran off of a hose attached to a spare tire.
Boy, I'll bet that made you popular with your Dad when he went to install that spare!
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Old 08-16-2005, 11:04 PM
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Quote:
Originally Posted by 66GMC
Hi

Balkamp stuff is just being re-introduced to the Canadian market, so I don't have computer access to pricing on all part numbers.
Based on the the $8.00 price tag, I presume that you're talking about the "Preval" unit?

The illustration (Item "B" in the attached pic) is P/N BKP 770-5030, which looks like a spray bomb up top, then possibly a propellant charge in the middle, and then has a clear graduated (glass?) jar on the bottom.
770-5031 is the "power pack" listed to fit this, which I pesume is a CO2 propellant cartridge?

Is this the unit you are describing above?
If so, does it spray fairly decent ... good results?




If these are decent, they may be just what I'm looking for as well. I plan to spray several assorted colors of Endura (2K) on frame and chassis components. Rattle-can enamel just won't survive down there.

The other thing that I was cosidering was a siphon-fed "touch-up" gun with a small cup.
Don
About the Prevail unit. Yup, I have been using one on the SPI stuff for awhile now. I use it for touch like when I nick and edge or something like that. It works good. Just take the plastic filter out of the bottom and mix the epoxy very well so it is thinned consistently. Try to avoid any chunks of epoxy in that little spray bottle and you will be amazed how well it works. Works great for doing small work like dashes and garnish moldings too.
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Old 08-17-2005, 06:10 AM
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I have a good spray gun, so I plan to use that. I purchased alot of primer, so i doubt i'll be running out any time soon, i'll just be sure to mix enough up that it will not pull air out of the jug if im tipping at a wild angle.

Thanks for all the help
mike
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Old 08-17-2005, 10:35 AM
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Quote:
Originally Posted by 66GMC
The other thing that I was cosidering was a siphon-fed "touch-up" gun with a small cup.
Don
Why not get a gravity touch-up hvlp gun.
Then you'll have the best of both worlds.
I got one by Astro that's fairly inexpensive and
it sprays better than my expensive guns.
Something about those little guns, they always spray great.
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Old 08-17-2005, 11:20 AM
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[QUOTE=jcclark]Why not get a gravity touch-up hvlp gun.
QUOTE]

I have a hvlp touch up gun as well, but it came with a 1.0mm tip. Thats pretty small for primers.

gun kit

i got that kit when it was 99 bucks, seemed like a good deal.

What will be the best tip for epoxy primer? i always thought 1.4 would do it, my gun came with a 1.3, you suppose it will lay epoxy down ok?

Mike
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Old 08-17-2005, 11:33 AM
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1.4 is the perfect tip, 1.3 will work.

I just can't believe the prevail sprayers will spray epoxy other than a small part maybe, don't know but would have to see to believe.
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