HELP HELP!!! paint reaction!!! what’s wrong??
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Hi guys.
I’m new here.
I’m not too too new to painting but I’m not a professional. Just a hobby-ist.I’ve painted many cars before/ bumpers/ etc..
Now I’m painting White Prius 08, and I’m trying to do the “Fade” on the quarter panel to help my painted doors match the OEM color better and not see the HARD color mismatch (if there is one).
So I sanded the quarter with 1000 grit.
Sprayed layers and layers of “mist” paint (dry paint)…trying to build up the layer.
And it doesn’t seem to be going too bad…But once I decide to put my FINAL and more “wet” and heavy coat….this NASTY reaction happens!!!
Why!?Can some one help me please!!?
I’ve been battling this problem for ever!!! CAn never get rid of it.
Don’t know how to get rid of it!!
Don’t know WHY it’s happening.!!PLEASE HELP!!!
I”m using Dupont Paint & BAsemaker to reduce it.
Reaction happens in odd places….?
First mistake is misting the paint. Apply your base coat medium wet to get coverage over the repair. Then reduce the color a bit and fade it out, but dont apply multiple mist coats then a heavy wet coat, that is what is lifting the dry base more than likely. Just need to work on your application technique and you will be fine. Solid colors blend easily, dont really need to mist it on.
Looks to me like he’s got exposed Single Component product under it. (Cut through the clear to a non hardened basecoat perhaps?) or a 1k primer. And the solvents in the Colorcoat/Basecoat are lifting whatever it is.
I say you most likely cut through your substrates clear coat to non hardened base coat because that top picture looks like a pattern sanding would cut into it. (IE DA Sander or Blocking)
I guess the question is what are you putting your materials over?
Do you have pictures before you put the color coat on?
Did you cut through there? If you did cut through what did you cut through to?I am with rat, something under it is causing that, not primered or sealed correctly.
That was my nightmare 2 weeks ago.
could be either case. but i’d have to lean towards going with Joe on this one. If he had cut throughs the many many coats of dry mist paint would have covered them up and help protect them. his application was all wrong and dupount is pretty finicky when it comes to recoating.
another blend panel gone bad? :deadhorse i think its your reducer being too slow, not evaporating fast enough and ur just piling more on causing it too stay wet and attack the material beneath it.
I thought that to, but the way the line is straight by edges sorta has me thinking it’s the substrate.
Take a razor and peel that sheit off, if your substrate comes with it, or rather it doesn’t. Will Answer your question.
It sounds like Joe is right to me. Unless there were cut throughs on the blend panel, but as Ding said the mist coats would have sealed it off. Unless there was no flash time between all of the mist coats and the wet coat.
This is just another example of why waterborne kicks solvents ass. This would never happen with water.
To the op, there is no reason to ever mist coat your first coats of base. They should all be medium to medium wet with Dupont. Only your last coat should ever have a drop coat if needed. With Dupont it is rarely needed. To be honest I would find a new brand of base. Dupont has to be one of the worst of the majors basecoat, and I have sprayed all of them. The only one competing for the last spot with it is Sherwin.
[quote=”ding” post=19393]could be either case. but i’d have to lean towards going with Joe on this one. If he had cut throughs the many many coats of dry mist paint would have covered them up and help protect them. his application was all wrong and dupount is pretty finicky when it comes to recoating.[/quote]
Sounds like the right possibilities here…
Chromabase should be applied medium to medium wet (as mentioned). The strong solvents in it love to attack whatever they can, so be cautious (follow the directions in the tech sheets). If you are blending the base and want to fade it out well, you can replace the base maker with the 69301S basecoat blender.
As per the tech sheets, Apply 2 – 3 medium coats until hiding and color match are achieved.
Read the tech sheet: [url=http://pc.dupont.com/dpc/en/US/html/visitor/common/pdfs/b/product/dr/ChromaSystem/H-19317_ChromaBaseBC.pdf]ChromaBase[/url]
Problem is you’re spraying Dupont…
I had the exact problem a couple years ago – I was applying light, but not too light. My dilemma ended up being the factory primer was WATER BASED! screwed me when I went over it with solvent-based primer/sealer/base coat. I had to spray epoxy on there as a sealer and then it was fine.
Okay I need MAJOR help on Counceling and Guidance on how to paint the CORRECT way.. :chair
I never went to school for it…but I always had huge passion towards painting and am learning on my own… :SI’m including pictures with expanations of my Step-by-Step process and mess-ups that I had and what I “tried” to do to fix them.
Please Look through and GUIDE me on what I did wrong…and What I SHOULD have done and HOW I should have done it (The CORRECT Way) :cheers
All Steps are here:
http://s337.photobucket.com/albums/n400/svldvc/PAINT%20REACTION/OR
STEP 0:
http://i337.photobucket.com/albums/n400/svldvc/PAINT%20REACTION/Step0.jpgSTEP 1:
http://i337.photobucket.com/albums/n400/svldvc/PAINT%20REACTION/Step1.jpgSTEP 2:
http://i337.photobucket.com/albums/n400/svldvc/PAINT%20REACTION/Step2.jpgSTEP 3:
http://i337.photobucket.com/albums/n400/svldvc/PAINT%20REACTION/Step3.jpgSTEP 4:
http://i337.photobucket.com/albums/n400/svldvc/PAINT%20REACTION/Step4.jpgSTEP 5:
http://i337.photobucket.com/albums/n400/svldvc/PAINT%20REACTION/Step5.jpgSTEP 6:
http://i337.photobucket.com/albums/n400/svldvc/PAINT%20REACTION/Step6.jpgWHAT should I do now guys?
And HOW would I go about fixing this problem?
Please guide me step-by-step.
What do I do next from here?
well if you posted those photos first or described what you did the first time around it would have been a lot easier. you never said you already painted it and then sanded and redid. hate to say this now but Rat was right :compsmash :compsmash .
you sanded through the fresh clear and the new base reacted with your original base coat. you have to feather out those spots and it would be best to prime those areas. you could spray some clear over them as well to seal the edges.
and for crying out loud after all that work why the hell are you doing a clear blend at the bottom of the quarter. spend the extra 5 minutes and sand the entire sail panel and clear it. and if i were doing a clear blend it would be higher up the the skinniest part of the panelI hate to say it but if you need step by step instructions you should not be tackling a job like that. Problem with misting basecoat is you get poor adhesion. I would strip all our paint off and start over, or the poor guy that owns that car will be unhappy with you when it peels in a year. It just comes down to improper application, and using the wrong products.. I would throw away your dupont base and get something better that is more beginner friendly.
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