I was considering painting/coating the inside of the trunk. It needs some love. I was thinking of POR 15, then I saw Eastwood had a product, then at Tractor Supply they had something that beat them all in price and said all the same things. What did you paint your trunk with? I plan to place carpet from Classic Industry after I just want to have it coated to prevent rust.
NAPA sells trunk paint in grey with black and white flecks or grey with pink and green flecks. GM used both paint but they changed year to year and model to model (I don't know it the choice of flecks follows exterior paint color or not but it might also be a reason for the changing paint scheme).
If you have bare metal now you want to seal it with a primer c
If I was going for a factory type look I would put a thin layer of the por-15 down (do not get this stuff on you as I learned from experience) then coat over top that with the correct fleck for the year.
I used that spray-can trunk-spatter-paint on my 66 and I was very happy with the way it looked. Shocked even. Really looks original to the casual observer.
Definitely needs to be clear coated over top for durability and liquid protection. Sorry I can't recall how many cans I used. Seems like 3ish for the floor, up the wheel wells a little bit and I put some on the quarter panel sides as well.
I also did the same Napa is awesome ,wiped mine down with wax/grease remover then shot over top of original. I cringe when I hear some one say they use POR15 , WHAT if someday you need to repair a spot that has that on or someone else has to .I think people use it as a cover up what you don't see wont hurt