jamesinyork Posted March 22, 2023 Share Posted March 22, 2023 Looking for someone relatively close to the Central Pennsylvania area that can porcelainize manifolds for a ‘36 Packard. Thanks Jim Link to comment Share on other sites More sharing options...
ramair Posted March 23, 2023 Share Posted March 23, 2023 I was not aware that the Packard 120 originally used porcelain. I have a Packard super 8 and a twelve with porcelain and someday I might have to redo the twelve and I am not looking forward to it as I have seen recent work from the few remaining companies that still apply “glass” and I think that it is a waste of money because if you ever tour with the car it appears to degrade almost immediately with use. On several of my restorations that did not originally have porcelain, I have used the jet hot coating, I have been real happy with the results. It is not shiny like porcelain and can not pass for it by any means. I like it and I know that many here would rather leave it natural. Picture below is my 1936 GMC with a 213 Olds engine, manifold done in Jet hot 2 Link to comment Share on other sites More sharing options...
Restorer32 Posted March 23, 2023 Share Posted March 23, 2023 Hello James in York from Jeff in York. As far as we know there is no one in the Central PA area who does porcelainizing. Was a place in Reading but they stopped doing it years ago. Link to comment Share on other sites More sharing options...
jamesinyork Posted March 25, 2023 Author Share Posted March 25, 2023 Thanks All. I like the jet hot may go that route want something that’ll hold up over time. Thanks Again. Jim Link to comment Share on other sites More sharing options...
nsbrassnut Posted March 25, 2023 Share Posted March 25, 2023 Hi All Just to echo James notes on the 120 manifolds. Packard porcelainized the manifolds for the 120's for at least 35-36-37. Both the intake and the exhaust were coated. And it wasn't a "show quality" process even then. The bottoms of the manifolds where you can't see don't have much of a coating. It looks a bit like the coating material was sprayed on from the top and baked. The bottom has a zebra strip where there is little or no coating at all which is most visible on the bottom of the intake. Drive Safe Jeff Link to comment Share on other sites More sharing options...
tcslr Posted March 26, 2023 Share Posted March 26, 2023 Can one of you provide details on this jet hot coating? Its supplier? is it something one can do at home? TIA. Tom Link to comment Share on other sites More sharing options...
Matt Harwood Posted March 26, 2023 Share Posted March 26, 2023 45 minutes ago, tcslr said: Can one of you provide details on this jet hot coating? Its supplier? is it something one can do at home? TIA. Tom www.jet-hot.com Link to comment Share on other sites More sharing options...
Stude Light Posted March 30, 2023 Share Posted March 30, 2023 (edited) I had the exhaust manifolds of my 1939 LaSalle porcelain coated by one of the larger companies still doing it. The porcelain started flaking in spots. The company offered to redo them but after reading up more it seems as cast iron ages, the surface grain structure changes some and porcelain does not adhere as well. I’m not sure if that is true or not but I didn’t feel like going through the headache of having them redone and failing again so, I had Jet Hot use their ceramic coating on them (inside and out) which is not near as thick and glossy as porcelain but I’m very happy with the result. And no issues. I would say it is a satin sheen. Edited March 30, 2023 by Stude Light (see edit history) Link to comment Share on other sites More sharing options...
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