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Old 05-07-2009, 04:57 PM
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clearcoat questions

I have 2 clear coat related questions, for 2 diffrent vehicles...

1st is, the clearcoat on the hood of my '98 Ranger has a couple bubbles in the clear, and a tiny spot or 2 where the clear is gone... can I carefully sand the old clear and evetything smooth and then go back over it with clear, and not repaint?


and 2nd is... I have ppg delstar polyurethane acrylic enamel for my '51 Chevy, and I think I'm going to clearcoat it, to make sure it shines nice.. and the tech sheet says it will work, and which clear to use, but are there cheaper clear's that are compatible?

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Old 05-08-2009, 07:20 AM
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You can clear over the existing clear, no problem.
It's done all the time on blend panels.
Problem is, those spots where it has bubbled will probably
look different, and whatever problem you have that caused the bubbles
will probably get worse with more clear on it.
It all depends on what condition the existing is really in.
Hard to tell without seeing it.
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Old 05-08-2009, 07:38 AM
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Problem is you will have to sand back those bubbled areas until they are smooth. This will inevitably disturb the basecoat enough to require a spot-in of base at the very least. Usually I will do a bit of primering in areas like that even on a cheap job, just to ensure that those spots at least won't fail again. A good clear coat, properly applied, can reduce future problems by increasing the amount of UV protection. But if there are more delamination problems already lurking under the paint, nothing will save it!

On the second question, most clears will work if the correct wait time is observed. I didn't know they still sold Delstar!!! Back when I was shooting thjat I probably would have used DAU82 over it... memories...

These days I would use SPI
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Old 05-08-2009, 08:25 AM
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Thanks guys.. I just want to fix it good enough so I can hold off on a complete repaint.. it's vermillion Red and it's faded enough that a new mix of the same color won't match exactly.. I just had my gas door painted, and it's deffinetly a little darker. takes a close eye. but it's diffrent
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Old 05-08-2009, 08:27 AM
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Quote:
Originally Posted by crashtech
On the second question, most clears will work if the correct wait time is observed. I didn't know they still sold Delstar!!! Back when I was shooting thjat I probably would have used DAU82 over it... memories...

These days I would use SPI
They market Delstar as fleet paint now.. I bought it because I don't have a big budget for my '51 Chevy, but all paint supplies still ran $460... did get 1 gallon and 2 quarts of custom matched paint which wasn't cheap
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