I put on 8 coats total. I put on the first 4 and then put the 3M filler on without sanding early in the re-coat window. Then I sanded it all in to match the body. I then followed up with 4 more coats of epoxy and installed back it on the car after it had been primered. Then I sanded both the body and bumper so make it all edge match perfectly. It doesn't matter how many total coats of epoxy are applied, if it's laid down as directed, it will never shrink or crack.
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'69 GTO Convertible - Acquired October 2020. An all original project car. Restomod is underway PROJECT THREAD
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