The green L78 I posted pics of is one of the most orig untouched Camaro's I have ever seen. It has a gloss tail panel. There is no way it is the same paint used to paint the firewall. I didn't pay any attention to the rockers to see if they were the same paint. Once again I would like to see a orig paint low mile survivor with Semi or satin or flat on the tailpanel.
That does not look like full gloss to me. Looks like maintained lacquer with flattening agent. Go buy a pint of straight lacquer and shoot a test panel. And shoot a urethane test panel too. Unbuffed, unflattened black lacquer will be glossier than that L-78 tailpanel. Maintenance will bring the gloss up on semi or satin.
Even if it was an unbuffed/non reflowed black lacquer panel it would be as glossy as the adjacent green from upkeep; which it is not. That yellow Yenko is no doubt glossy. Looks like unbuffed lacquer but I could add f. agent to urethane till I achieved that look also. I've buffed flattened lacquer as a test and it came out glossy. And if these panels were indeed semi-gloss and not satin there is no doubt that 40 years of upkeep will raise the glossiness yet. I've sprayed all this stuff so I know. But I don't claim to know exactly what the factory did. If you want to experiment buy some black and f. agent. Or buy some PPG 9248 ,9317, 9266, and straight black and have a go at it. I'm going with semi-gloss or satin. Without a f.agent pecentage weight there is no accuracy on the call.
And you can't use decals as a paint comparison. ( In regard to the other post)