Re: Hand Painting/Spraying

Posted by Bob Kerr on December 14, 2007 at 21:32:23 from (205.188.116.73):

In Reply to: Hand Painting/Spraying posted by Mike Farmer on December 14, 2007 at 14:42:51:

I have done a fair amount of reasearch on this topic mostly with regaurds to the Oldsmobile factory, but most factorys were close to follow. As of Late 1924 All of Oldsmobiles enclosed car bodies were built by Fisher body and they were one of the early factorys to use spray guns. The spray gun was patented around 1921 and I think DeVillbiss had the patent if I am not mistaken. In 1924 Olds open car bodys like tourings, roadsters etc, were still being built by Olds (not Fisher) and were all hand painted. Most all companys by 1929 were spray painting as it was a huge labor saver since a crew of people to hand sand and rub the paint out on sheet metal panels was no longer needed and one guy could spray paint faster than 4 guys could brush. I have an early IH 10-20 overhaul manual and it shows an engine with the manifold off. You can see the brush strokes on the engine block that someone tried to make behind the manifold while it was installed. So I can say at least as of 1925 or when ever the picture was taken for the manual, IH was still brush painting. Tells me they were assembled and then painted. I was told by someone years ago that IH didn"t start spray painting till 1929, the guy new his stuff on a lot of things regaurding IH but I would still want to see the proof like factory records to verify it and not go on hear say. I am not sure if records exist for IH on this. Oldsmobiles records amount to nothing more than purchase orders for spray equipment as of spring 1925. I bet Guy Fay has more info on IH and spraying paint. I can tell you this. I hand brush painted the cast iron on my 10-20 with Centari and it came out absolutely beautiful! I tried to hand paint the sheet metal with it and it came out lousy. I have hand painted Lacquer on sheet metal years ago and it takes a special tecnique to do it and super slow dry thinner but will always leave some brush marks. A super good brush is a must also. To get those out the old car companys hand sanded and rubbed the paint out with rubbing compounds like Blue Coral. Real early Car companys say around 1910 and earlier used any decent paint they could get, which was real bad compared to now days, and would acually use Marine Spar Varnish as a top coat. Spar varnish was the best low cost finnish of the day for outside use, but had to be recoated yearly. I have a 1906 Olds 3HP stationary Engine with original paint and it still has some varnish on it, but most has flaked off. Varnishing was pretty much the standard for keeping buggys painted nice and can be rubbed out super smooth. paint back then was just not good enough to do that and hold up for long before oxidizing. Ford used Japan Enamel on Model Ts at one point as it was real cheap, but those cars would be lucky to have the factory paint left after one year, even if kept in a shed and the idea was to get them out the door as cheap as possible to run the other companys out of business. Didn"t work! Whew! My hands are tired from typing! Sorry about the long one!

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