dibarlaw Posted May 1, 2017 Share Posted May 1, 2017 Does any one have a formula for a close match for the 1925 Cobalt Blue. I was able to get the 1925 Brewster Green matched by a chip that Hugh in Texas gave me. I used the information from the 1971 AACA Antique Automobile Buick Article by Dave Chambers. The matches were for car colors that were already 20 or more years old. Also, they were for the Duco or Dulux formulations. The PPG numbers gave me a good dark blue on the web color match sites but our local paint supplier does not have a cross reference. So I would need a formula or a chip of paint to scan into their equipment. 1925-45 with mostly original Cobalt Blue. Cobalt Blue.docx 3 Link to comment Share on other sites More sharing options...
Terry Wiegand Posted May 1, 2017 Share Posted May 1, 2017 Larry, without digging out Dave's article(s) in the Antique Automobile magazines, our 1922 Model 48 has been labeled as Cobalt Blue or Buick Special Blue. Do you think that this is the same shade of Blue that you are inquiring about? I do know that back at that time certain models of Buicks were only available in certain colors. Our 1922 Model 48 was only available in the Cobalt Blue. Jim Milewski's 1923 Model 48 was only available in that very beautiful Maroon paint color. The Sport Roadsters and Sport Tourings were only available in certain colors. I wish that I knew how long this practice was used, but, I simply do not know. Terry Wiegand The Sun is Finally Shining in Doo Dah 1 Link to comment Share on other sites More sharing options...
dibarlaw Posted May 1, 2017 Author Share Posted May 1, 2017 Terry : In Dave's article he shows that each year the cobalt blues crossed to the more modern, non metallic (post war) close matches.. Original color Substitute Ditzler (PPG)# DuPont# 1921-1923 Dark Blue Color Var. 1952 Studebaker Nocturne Blue 10989 93-57068 1924 Cobalt Blue Med. Color Var. 1954 Ford Sheridan Blue 10428 246-81501 1925 Cobalt Blue 244-3198 1953 Chrysler Huron Blue 10027 246-81580 The 1953 Chrysler Huron Blue showed up as a very light blue. But, the #s Dave gave for it are for a 1941-1951 Chrysler Newport Blue. Looking at all these cross referenced blues each are a different shade when compared. The 1925 Limousine Blue 244-787 1949 Mercury Alberta Blue 10480 246-55106 Looked even darker when compared to the others on the web paint cross referencing sites. 1924 Model 49 should be Cobalt Blue if correct and I really like the color. 1924-44 also to be Cobalt Blue that sold on e-bay last year. 2 Link to comment Share on other sites More sharing options...
Bob Atkinson Posted May 2, 2017 Share Posted May 2, 2017 I have the formula for Cobalt Blue in modern PPG Global DG. In the early 1970's my 1926 Buick was painted with Nitro Cellulose lacquer from the Cobalt Blue formula supplied by Dave Chambers. When I restored it again in 2008 the PPG rep. shot it with his color matching machine and the new formula in Global DG was the result. It is an exact match. E-mail me at bobatkinson@roadrunner.com and I will be happy to share the formula with you. Since it is a custom color it is not cheap but it was worth the price to me. Attached is a picture from right after it was painted. 5 Link to comment Share on other sites More sharing options...
dibarlaw Posted May 2, 2017 Author Share Posted May 2, 2017 Bob: Thank you. This is the color I could really see the car having. The former owner painted the car in lacquer in the early 70s. A medium/dark blue. Not as dark as the cobalt. Then in the early 80s he repainted over top of the darker blue in what I would call "Earl Sheib Blue". I could have lived with the darker color but not this light blue. Email sent. Larry 1 Link to comment Share on other sites More sharing options...
Hubert_25-25 Posted June 16, 2017 Share Posted June 16, 2017 (edited) Larry, I got to thinking about Cobalt Blue and getting a sample. One place that would have little if no fading would be the underside of the cowl vent. There are only 4 small bolts that hold this part in place. I wonder if you could get someone to have theirs colormatched, or would allow you to borrow it? Or can you send a sample to someone to verify a color you are considering. The other comment I wanted to make is the number of cars that Cobalt Blue was used on. According to the BCA judging manual, several models over 3 years. 1924 models 37,44,47,48,49,50 1925 models 27,28,40,44,45 1926 models 20,26,27,28,40, 47 I appreciate all of Dave Chambers contributions, but I do know that his recommendation for Brewster Green was not correct when compared to my original paint that was under the cowl strip and the firewall ID tag, so he may have been a little color blind. I can only speak for this 1 color. Put the photos you have in power point or photoshop and overlay the blues Hugh Edited June 16, 2017 by Hubert_25-25 (see edit history) Link to comment Share on other sites More sharing options...
ROD W Posted June 16, 2017 Share Posted June 16, 2017 Here,s a list of matching Dupont colours 1 Link to comment Share on other sites More sharing options...
Guest Posted June 17, 2017 Share Posted June 17, 2017 (edited) Remember too that the same colour sprayed at different pressures and even different humidities can/will/may dry to different shades. When I worked at a GM dealer in the sixties one of our painters mixed a current colour and painted six different shades on sheet metal that had all been prepared the same. Add to this 85+ years and some of our faded memories. It really is nice though to at least try to come close to the original colour. By the way, I could live with any of these blues rather than the non original green/green that is being discussed on one of these topics. Edited June 17, 2017 by Guest (see edit history) Link to comment Share on other sites More sharing options...
Hubert_25-25 Posted July 11, 2017 Share Posted July 11, 2017 (edited) Larry, This is the mixing formula for Buick Cobalt Blue that Bob Atkins used. PPG Global DG Formula: D700 16.9 D704 122.2 D702 84.3 D736 91.0 D724 774.3 Also attached is the Cobalt Blue Formula that Bob Bitowski used. I believe this is Sherwin Williams. He started with Bob Atkins formula. Hugh Edited July 11, 2017 by Hubert_25-25 (see edit history) 2 Link to comment Share on other sites More sharing options...
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