Chromasystem shelf life

[68Jcode]

I'm getting back to the paint and bodywork on my car after a very long hiatus. I've got some chromasystem materials (7600s clear & activator, chromabase and basemaker, 4660S chromaprime and primemaker, variprime, sealers, etc) that are at least 8 year old.

Question #1:
Most of them are unopened from when I bought them should I be concerned about their age?

I've only got one quart of color remaining (2 qts with basemaker) so my idea is to paint the jambs, inside of the fenders, under the hood, and under the trunklid with the old material, then paint the outside with new.

Question #2:
Should I expect any compatibility issues between the old and new? The old will have several days (or months) to cure before I shoot the outside.

Question #3:
What surface prep is required for repro hood and trunklid? They are for a '68 Mustang, and are currently satin black, but I don't know if it is e-coat or something else.

Thanks,

Andrew

[JCCLARK]

As long as the paint hasn't gelled or developed any grit that you can detect
when straining, it should be alright to use.

I don't see why you would have any compatibility issues between old and new
as long as everything is prepped right, it should be fine.

For aftermarket panels I like to test the primer by wiping a spot with lacquer thinner
to see if it disolves. If it does, then I generally strip it.
If it doesn't, then clean by washing real good and sand with 600 and it
should be good to go.
But an additional coat of epoxy primer before paint is my preference
just to seal it and add to the adhesion for durability.
Most body shops don't do that and don't have problems. :cool:

[fixdent]

I use ChromaPriemier in my shop. I have colors on the shelf that have been there for a couple years, and I don't hesitate to use them.

The only problems I ever have is with the activator going hard in the can.

I ALWAYS use a valueshade sealer.

--
Gordon **Shareware Estimating Program** (http://www.geocities.com/fixdent)