POR-15 has to be topcoated for anything exposed to sunlight as well or it will break down with UV rays.
From the POR-15 website:
"WILL THE SUN DESTROY MY POR-15 COATING IF I DON'T TOPCOAT IT?
If the surface is exposed to the sun for an extended amount of time, the UV rays will eventually break down the POR-15 and cause it to fail. That’s why we recommend you topcoat it."
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68 Camaro (?350 SB)
69 Camaro (L72 427 BB)
69 Camaro (DZ 302 SB - www.z28.net)
Camaro - A friendly flying car – from the French - the first half "camarade/friend" and the last half “aero/of the air".
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