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Regular Member
Re: spotting under brand new black car paint
Sorry for the delay. To answer the question. I don't know first hand, but have been told that its problem solved at that point. we have dealt with a dozen or so of them in the last 5 years and I have never heard of any of them coming up again.
Originally Posted by
Pitchblackcat
I appreciate the responses everyone!
Natron-once the heat has evaporated the "moisture", is the clearcoat not adhered to the underlying basecoat? My concern is even after applying heat, there is still a missing cross link between clearcoat and basecoat. What did you see after the heat was applied? Total correction?
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Re: spotting under brand new black car paint
If this is "moisture" or solvent under the clear, where is the substance going when heated with a heat gun? Is clear coat permeable?
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Re: spotting under brand new black car paint
Originally Posted by
AZpolisher15
If this is "moisture" or solvent under the clear, where is the substance going when heated with a heat gun? Is clear coat permeable?
Solvents out gas through the clear.
Colours and clearcoats are liquid because they are mixed with a catalyst enabling them to be applied and bond to a surface. In this case the catalyst is a solvent.
If the solvent remains, the paint stays wet. Luckily, and by design, the solvent evaporates though the paint enabling the hardening process.
For whatever reason, usually due to poor prep (like every problem in the world), it may be the case that the solvent from the paint has remained trapped under the hardened clearcoat. By heating the clearcoat you’re slightly changing its state to enable the gasses to pass through and hopefully remove the defect.
Works better on a self-healing clear than a reg one.
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