A few weeks ago when I was painting the inner fender wells I noticed that in a few places their was some dark blue chunks or stringy pieces of paint that was randomly in the paint. No biggy, I just wet sanded and clear coated the next day.

I now painted the new fender wells but this time I bought a water/dirt filter and new hose thinking maybe it was water in the line, but it did it again! What is causing this? I would like to figure it out before I paint the body in a few weeks.

Lee

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1970 ZZ502 Chevelle (http://www.1970chevelle.net)
My Wife's 1967 ZZ502 Camaro 12.04@115 (http://www.1967camaro.net)
1997 Yukon 4x4 13.7@98 (http://www.blown4x4.com)

Sounds like you haven't stirred/shaken the paint enough to thoroughly mix it and/or you aren't using a fine strainer.

<BLOCKQUOTE>quote:</font><HR>Originally posted by vettefella:
Sounds like you haven't stirred/shaken the paint enough to thoroughly mix it and/or you aren't using a fine strainer.<HR></BLOCKQUOTE>

You can also get the blobs and strings from an improperly cleaned paint gun.

vettefella - I clean the gun religeously and it's spotless so it must be the stirring and or strainer. The strainer looks fine but I've only got these to compare. Maybe I'll use my wifes egg beater to get it mixed better!

I'll try mixing it more tomarrow when I paint the inside of the hood.

Thanks,

Lee

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1970 ZZ502 Chevelle (http://www.1970chevelle.net)
My Wife's 1967 ZZ502 Camaro 12.04@115 (http://www.1967camaro.net)
1997 Yukon 4x4 13.7@98 (http://www.blown4x4.com)

[This message has been edited by 70_chevelle (edited 02-09-2002).]

I think what your referring to is called cobwebbing. Use to be cool back in the 70's as custom paint.
Causes:
Incorrect paint mixing, ie. too much color not enough reducer.

Too much air pressure coupled with not enough paint flowing through the gun.

Screwed up gun.

What type of paint are you spraying?

RandyB - I'm using House of Kolors Kandy cobalt blue. The gun is new. HOK recommends 50-60 pounds at the gun and I have it at 50. I'll try to make sure it's mixed better and if that doesnt work I'll try dropping the air pressure a bit.

Thanks,

Lee

what fluid tip do you have on your gun? It "COULD" be too small?? Are you sure the paints are shaken before you mix them? Also have you sprayed anything else with this gun? There could be a contaminate within? Do you leave thinner in the gun for storage? Are your fan and material settings closed up on the gun too tight? There are many variables that could cause your problem.. Eliminate them one by one and keep trying.. Good Luck!

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X-Ray View of my Chevelle :D (http://www.normieschevelle.com/sideview.jpg)
Getting Closer (http://www.normieschevelle.com/passfull.jpg)

normie -

I have a Sata Jet with a 1,4 nozzle.

The paint is not shaken, it's been sitting for months, I stir it for maybe 5 minutes prior to use.

I have sprayed from primer to clearcoat with this gun on this vehicle only, it's a new gun.

Yes I do leave thinner in the gun, I pull the trigger for a few seconds before putting the paint in the gun. I clean it very well in between paints, I'm pretty sure it's clean.

My fan knob is all the way on and the trigger it set at maybe 1/2 travel.

HOK recomends that the first 2 coats you really limit the pull travel then open it up. I do leave the fan setting on full the entire time.

Shooting candy is far too difficult for a first timer! It's darn hard to get the color even when painting uneven surfaces!

Lee

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1970 ZZ502 Chevelle (http://www.1970chevelle.net)
My Wife's 1967 ZZ502 Camaro 12.04@115 (http://www.1967camaro.net)
1997 Yukon 4x4 13.7@98 (http://www.blown4x4.com)

now you have me stumped... I would disassemble and really clean the gun first off.. I painted with brandywine candy "First Timer" without any issues.. I'm thinking it could be overmixing, contaminate in the gun, or gun settings... Did the paint ever "Freeze" or something in storage that could have affected it? Maybe someone here has some other advice for you as well.. I painted a motorcycle with uneven surfaces without a hitch in color.. The trick was staying the same distance parrallel from the surface and laying on even flowing coats.. Take a Look www.normieschevelle.com/bike (http://www.normieschevelle.com/bike) Good Luck.. Let us know how things turn out

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X-Ray View of my Chevelle :D (http://www.normieschevelle.com/sideview.jpg)
Getting Closer (http://www.normieschevelle.com/passfull.jpg)

normie - I took a 1.5" wood drill bit, the one thats flat with a point in the center and ground off the tip and dulled the edges and I'm mixing the paint with my cordless drill. It appears to work great, far better then a stir stick for sure!

The gun is really clean, so I dont think that's the problem. I just watched the HOK video again and they were saying to use 60-65 pounds pressure, so I'll up the pressure a bit (it's 50 now).

As far as uneven edges, I'm referring to the door jambs and the inside of the fenders were the hood settles on. It's very difficult to get the candy in the deep angles and crevises, the primer and base hit the angles just fine though.

BTW, what do you mean by "over mixing"?

Lee

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1970 ZZ502 Chevelle (http://www.1970chevelle.net)
My Wife's 1967 ZZ502 Camaro 12.04@115 (http://www.1967camaro.net)
1997 Yukon 4x4 13.7@98 (http://www.blown4x4.com)

Overmixing meaning using too much reducer, or too fast of a reducer for your shop temp.. I have a hunch that if it's been sitting on a shelf for months, you might have a reducer for higher temp, and that could be causing your problem... what reducer are you using? fast medium or slow? your tech sheet sould have the temps for each reducer listed...

Here is the tech sheet for Kandy http://www.autobodysupply.net/houseofcolor/houseofkolorkandyUK.htm

and here is the reducer tech sheet if you don't have them... http://www.autobodysupply.net/houseofcolor/houseofkolorreducers.htm

Good Luck!!!!

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X-Ray View of my Chevelle :D (http://www.normieschevelle.com/sideview.jpg)
Getting Closer (http://www.normieschevelle.com/passfull.jpg)

normie - I'm using medium reducer.

To all - I "think" I found the problem, I opened up the flow quite a bit and that seemed to help and may have stopped it. I will paint some other parts tonight with this setting and see what happens. I guess I've been overly caution with runs since I had huge runs when I did the door jambs. For some reason, on the last coat of kandy on the jambs it ran everywhere, just like it was water. I'm still not sure what I did wrong so I've been trying not to do that again, it was a real pain stripping the new paint and redoing it :-(

Lee

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1970 ZZ502 Chevelle (http://www.1970chevelle.net)
My Wife's 1967 ZZ502 Camaro 12.04@115 (http://www.1967camaro.net)
1997 Yukon 4x4 13.7@98 (http://www.blown4x4.com)

Tip on painting those hard to get areas.. Set your gun up for a small pattern and spray the hard to get areas up close first.
Likie when I do trucks without taking the beds off. I'll jamb in between the cab and bed first with a small pattern set up to get in close and into the area.

Glad you fixed your problem..
RandB..