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chrisarnt
Samba Member
Joined: November 28, 2005
Posts: 541
Location: New Jersey
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 Posted: Mon Nov 06, 2017 12:14 pm Post subject: Primer (dupli-high build) makes non- original paint peel. |
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I've got a small section down low I took the rust off. I have it treated, a little filler and taped off.
it is down low and doesn't need to be professional, but still want it to look good.
I've got a little of the original paint scuffed so I can blend it in.
I'm gonna put some high build primer on but the original paint peels a little.
I'm using duplicolor high build sand able.
It looks like it was resprayed by PO about 5 years ago, if that helps. |
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marklee
Samba Member
Joined: March 24, 2009
Posts: 821
Location: Flintshire, North Wales
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| Posted: Mon Nov 06, 2017 1:59 pm Post subject: Re: Primer (dupli-high build) makes non- original paint peel. |
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its the thinner/reducer in the primer thats causing the issue.Make sure the repaired area is feathered out as smooth as possible down to 800grit wet and dry used wet. Dry the area and if you must use a rattle can to paint it use a product like this http://www.ebay.co.uk/itm/Sunox-Trade-1k-Paint-Iso...2796064149 before you use primer.Follow the instructions to the letter
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chrisarnt
Samba Member
Joined: November 28, 2005
Posts: 541
Location: New Jersey
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| Posted: Tue Nov 07, 2017 8:08 am Post subject: Re: Primer (dupli-high build) makes non- original paint peel. |
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| marklee wrote: |
| its the thinner/reducer in the primer thats causing the issue.Make sure the repaired area is feathered out as smooth as possible down to 800grit wet and dry used wet. Dry the area and if you must use a rattle can to paint it use a product like this http://www.ebay.co.uk/itm/Sunox-Trade-1k-Paint-Iso...2796064149 before you use primer.Follow the instructions to the letter |
I see that product.
I spoke to the old timer VW guy who works at Sears, he restores VWs on the side.
He said the problem was putting lacquer based paint over enamel paint.
You are going to hate that I'm saying this, but...
But Krylon make an all surface enamel spray paint that self etches. I used it one other small spot and no bubbling of original. Also, no issue with primer coming through at the tape line.
I used the satin finish, wet sanded the tape line and buffed it out.
Looked almost perfect, but I wouldn't use it anywhere conspicuous.
This time I'll try the gloss and if that comes out great will maybe tackle some more advanced spots. |
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theKbStockpiler
Samba Member
Joined: July 07, 2012
Posts: 2316
Location: Rust Belt
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| Posted: Tue Nov 07, 2017 10:26 am Post subject: Re: Primer (dupli-high build) makes non- original paint peel. |
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Some times it's the rattle can not getting mixed enough or they mixed it wrong, too much thinner or drying agent comes out all at once.
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