Where can I find a source for all the correct paint and plating finishes for all the misc pieces in the engine compartment?

Thanks in advance!

There is a comprehensive list of finishes in the reference charts in the back of Jerry MacNeish's "Definitive" Z/28 books ...

The one finish I need right away is the color for a 69 BB fan. Is it gloss black or satin black? I've seen both. Which one is right?

I believe the correct color is gloss black, with about 60% gloss.

For '67

http://www.67z28.com/finishes.htm

Just how does one make paints, especially spray paints, with different glosses i.e. 60% gloss, 30% gloss etc? I have always wondered this as it will come in handy to keep the pieces correct.

I apologize if this is a little hijacking.

Thanks

Just how does one make paints, especially spray paints, with different glosses i.e. 60% gloss, 30% gloss etc? I have always wondered this as it will come in handy to keep the pieces correct.

I apologize if this is a little hijacking.

Thanks

Flattening agent. But without a scale and formula you're shooting test panels till you get it right.

Sooo... it sounds like it should be semi gloss??

I've made a couple of calls to some camaro buddies of mine and I get the same answer. One says it's gloss black and two say semi gloss.

Any other thoughts out there?

Hi susan, I'll look in my book later today. I think I remembe it is 60% gloss black, which would be close to semi gloss in spray cans.
I have called paint Reps. and ask how to achieve the % gloss that is refered as correct. None had any Idea. Dupont sheet shows degrees which is even more confusing. Like stated above, use a flattening agent and test spots. Or---Krylon gloss is close to 100% gloss---semi gloss is close to 60% gloss---semi flat is close to 30-40% gloss. Dennis

Thanks

Susan,
I just looked in my book and it says Fan Blades are 60% gloss black--which is close to semi-gloss black. Hope that helps. Dennis

Finish sheen gets lost sometimes. In ascending order: Flat, eggshell, satin, semi, and gloss. Period gloss was not as today's paint. Unflattened lacquer is a far cry from urethane gloss. For example: Given that the heater box cover was painted gloss from the factory, spraying it with urethane at full gloss would be incorrect.

GM didn't paint their fans or engine parts with a rattle can of spray paint. They used a rail car with paint guns siphoning it directly from a manifold fed by the rail car. They didn't stop and clear their guns, shake the can or anything else other than slather on paint, The color of the paint changed from the first application to the bottom of the rail car due to settling and separation. So there is no one correct shade as even the correct paint batch varied from day to day. The more mismatched the paint on the motor is from the engine bay the 'more' original it is.

Think volume not individual chalk marks.

Larger Dave

GM didn't paint their fans or engine parts with a rattle can of spray paint. They used a rail car with paint guns siphoning it directly from a manifold fed by the rail car. They didn't stop and clear their guns, shake the can or anything else other than slather on paint, The color of the paint changed from the first application to the bottom of the rail car due to settling and separation. So there is no one correct shade as even the correct paint batch varied from day to day. The more mismatched the paint on the motor is from the engine bay the 'more' original it is.

Think volume not individual chalk marks.

Larger Dave

That's correct. But most people need a place to start and don't have 20 years painting experience like you, I or others have. And rely heavily on aerosol. That being said. PPG 9266 or SEM 39143. Been shooting both for years. Most places can mix most paints in aerosol now. So the backyarders don't have to rely on the hardware store for paint products exclusively.

... I have called paint Reps. and ask how to achieve the % gloss that is refered as correct. None had any Idea. Dupont sheet shows degrees which is even more confusing...

Hummm - that's funny - I worked for DuPont F&F dept. for over almost 20 years and it wasn't a mystery to us ;)
It's just math - which I will admit is hard for some folks to fiqure out :o
As a matter of fact, the answer to 'Gloss by %' has been given in these forums several times ...

Great! I don't have the money for a rail car, didn't have any success with the reps and didn't find the info here. That said, I'm glad to here from somebody with the knowledge I'm (were) looking for.
Sounds like you have just the info we are looking for. Would you tell us the mixing formula for
1-30% gloss
2-40% gloss
3-60% gloss
These seem to be the most common % mentioned, Thanks for the help in advance. I don't want to use the rattel can. Dennis

Try this. http://www.67z28.com/finishes.htm

Thanks Brett,
Thats the same book I have that speaks in % of gloss.

Vintage 68 said he worked at Dupont in the T&T dept. and knows the formula. I'm waiting for the answer so I can get started painting and hopefully so can Susan.

Try this. http://www.67z28.com/finishes.htm
Great info !

Vintage 68, where did ya go??

It's not necessarily a paint code that you can type into the computer for every level of gloss. And it depends on which line you're using. Some use a flattening agent, others a combination of flat clear mixed with gloss clear.

We use 6 different shades of black that we have dialed in to be consistent. Well, we have 6 available, but only use full gloss on rads and don't really use 0% gloss.

Like Dave said there is more to it than just asking for gloss %. Especially since there was no rigid guidelines and consistency of blackout paint was not really considered to be of great importance from the factory 40 years ago. They were painted as a means of transportation and foresight was not given to those who would be showing these cars for points half a century later. If you shoot your components too far off in % then obviously it would look incorrect. It's not like today's painting tech and variables which would require too much info to be listed here. But if you want a taste of what's involved this link just scratches the surface. In 5 years it will be more involved yet. https://corporateportal.ppg.com/NA/Refinish/PPGRefinish/4-0-ColorTools/4-3-Tools/4-3-1-Collision/EN/030_Tint

Vintage 68, where did ya go??

Sorry - been at Hot August Nights for 4 days and got back to my hotel so late every I just never got on the site :o

It will be a fairly loooong post to do the mixing explanations (might be why it isn't done often) so they're understandable :yes:
I will try to get it done in the next night or so ...

Oh, and it was 'F & F' (Fabrics and Finishes) I worked for, not "T & T" - don't even know what that division, if it existed, would have done ...

Like Ram Air Dave and others are posting, there is no "set" formula for getting the 'correct' sheen required.
Each mix batch specification was based on meeting the OEM specs. for a given % reading. These mixes were formulated in a given product line and then than material spec card was followed for each batch supplied to that manufacturer until their spec. changed.
There is a wide spec. variance for each spec. - so a "60%" could be anywhere from about 50~75% refractive and still be within spec. ...

John

I think we should make a sticky on correct colors of parts under the hood. Id gladly post the link and make it a sticky if somebody is generous enough to email me all the info?

Thanks for all the input!!!!

RamAirDave, Could you please list which paints you are using by manufacturer and type?