Tiger stripes in my Matte/Flat clear...What the heck??
#1415714
04/07/13 02:05 AM
04/07/13 02:05 AM
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Joined: Feb 2010
Posts: 18,493
Granite Bay CA
Kern Dog
OP
Striving for excellence
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OP
Striving for excellence
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
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I'm finishing up with the paintwork on a 72 Duster. Inferno Red body with a Matte Black performance paint treatment. The Matte/Flat clear coat I laid down has what can be described as tiger stripes in the clear. In reality, there is alternating levels of sheen as if the clear is still drying.
I sprayed it yesterday during a daytime temperature of 75 degrees. I laid on 2 medium coats with a 50 % overlap using the same cheapie harbor freight gun that I have used many times before. It is a gravity feed gun with a 1.5 tip. I get NO tiger stripes using these guns, even shooting metallics or pearlcoats. This clear is a PPG product that has given good results in the past.
My instincts are to wait it out, thinking that as the clear cures, it will flatten out. I suspect that the glossy areas will dull down as they fully dry. I obviously won't be satisfied with an uneven finish. I am curious as to what can be done if the situation doesn't improve. I cannot pinpoint what caused the striping other than my IMperfect painting skills, so a respray could return the same results. Can the surface be dulled down by other means?
What do you guys think?
Last edited by Frankenduster; 04/07/13 02:12 AM.
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Re: Tiger stripes in my Matte/Flat clear...What the heck??
[Re: Kern Dog]
#1415715
04/07/13 02:24 AM
04/07/13 02:24 AM
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Joined: Aug 2006
Posts: 162
nj
notforsale440
member
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member
Joined: Aug 2006
Posts: 162
nj
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ive use SEM hotrod black many times with zero issues..........looks great, holds up, and cleans up......cant stand ppg products
Last edited by notforsale440; 04/07/13 02:25 AM.
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Re: Tiger stripes in my Matte/Flat clear...What the heck??
[Re: Kern Dog]
#1415719
04/07/13 09:04 AM
04/07/13 09:04 AM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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If not, maybe you an hit the matte area's with 2000 git paper to knock all the sheen down to a universal appearance?
**Photobucket sucks**
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Re: Tiger stripes in my Matte/Flat clear...What the heck??
[Re: 70Cuda383]
#1415720
04/07/13 11:49 AM
04/07/13 11:49 AM
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Joined: Sep 2005
Posts: 12,481
Chino Valley
RodStRace
I Live Here
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I Live Here
Joined: Sep 2005
Posts: 12,481
Chino Valley
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50% overlap is not enough for good flow out. I'd go with a 75% and not pull back for the final coat. I bet at least some of what you are seeing is the overspray at the edges of the fan pattern that is drier when it hits.  Going in two directions (across stripe first pass, along stripe second pass) will help too. If you are shooting hood/roof/deck, you should probably set up a step at the roof so you can comfortably shoot all three at the same distance. 2000 grit may fix it for you.
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Re: Tiger stripes in my Matte/Flat clear...What the heck??
[Re: RodStRace]
#1415721
04/07/13 12:14 PM
04/07/13 12:14 PM
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Joined: Feb 2007
Posts: 1,608
fresno ca
mikeysmopars
top fuel
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top fuel
Joined: Feb 2007
Posts: 1,608
fresno ca
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I use the cheep guns on a lot of my paint work and the trick is understanding the materials. Clears and fine metallics you need a smaller needle & nozzle. You can buy ten of those harbor freight guns and all ten will spray different. I use a Sata for those final coat applications with a .08 setup.
Last edited by mikeysmopars; 04/07/13 12:15 PM.
Founder and CEO of the Central Valley Mopar Drag Pack
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Re: Tiger stripes in my Matte/Flat clear...What the heck??
[Re: Kern Dog]
#1415722
04/07/13 05:14 PM
04/07/13 05:14 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
I'm finishing up with the paintwork on a 72 Duster. Inferno Red body with a Matte Black performance paint treatment. The Matte/Flat clear coat I laid down has what can be described as tiger stripes in the clear. In reality, there is alternating levels of sheen as if the clear is still drying.
I sprayed it yesterday during a daytime temperature of 75 degrees. I laid on 2 medium coats with a 50 % overlap using the same cheapie harbor freight gun that I have used many times before. It is a gravity feed gun with a 1.5 tip. I get NO tiger stripes using these guns, even shooting metallics or pearlcoats. This clear is a PPG product that has given good results in the past.
My instincts are to wait it out, thinking that as the clear cures, it will flatten out. I suspect that the glossy areas will dull down as they fully dry. I obviously won't be satisfied with an uneven finish. I am curious as to what can be done if the situation doesn't improve. I cannot pinpoint what caused the striping other than my IMperfect painting skills, so a respray could return the same results. Can the surface be dulled down by other means?
What do you guys think?
My says the gun is not clean enough inside...has built up paint in it causing it not to flow enough material and air to get the paint to lay right.
Even if when you clean your gun thoroughly each time after painting it builds up and has to be soaked and cleaned well while it is apart to get it to flow enough air and paint sometimes.
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