To put in my thoughts, powder coating will work until it is chipped and then all bets off. Porsche had rust issues until they moved to galvanised body shells in the 80's and then things improved. Galvanising steel is the best way to protect it for as long as you can, alternatively have a custom built one made from high grade stainless steel, it will last a long time but will eventually rust and will be expensive. Probably cheaper to have a galvanised chassis and rebuild every 30-40 years or so.
Regards Adrian On 2 Jul 2012, at 20:40, Owen Jenkins <[email protected]> wrote: > They are fine until they are damaged. For those of us who drive Morgans which > ground on most speed bumps, they are not the answer. > > Regards, > Owen. > ----- Original Message ----- > From: Dave Ager > To: mogtalk2 > Sent: Monday, July 02, 2012 8:23 PM > Subject: Re: [mogtalk2] chassis at G.E.E. > > Hi just to give my 5 penenth. > > Powder coating is good. Can last for years. > I know of one company that offers 15 year warranties. > However like everything its all in the prep. clean the substrate properly, ie > degrease and then etch any surface corrosion with a phosphating acid. Follow > with a pretreat of zinc phosphate (tricat) or one of the new silane based > processes and you have twenty years. The right material will resist cracking, > we use 16mm 180 degree bend back without cracking on 1.6mm material. With the > correct pretreatment substrate creep is minimal, but it can happen. > Cleaning ready for powder coat is more than a rag soaked in thinners. > > Next thought. What about Autophoretic (not sure about the spelling) coating > just like the new three wheeler. Inside and out by dip processing. > Dave > > > View posts on The Mail Archive > http://www.mail-archive.com/[email protected]/ > > Modify Your Subscription ------------------------------------------- View posts on The Mail Archive http://www.mail-archive.com/[email protected]/ [http://www.mail-archive.com/[email protected]/] Modify Your Subscription: https://www.listbox.com/member/?member_id=22459785&id_secret=22459785-4a39ddf8 Powered by Listbox: http://www.listbox.com
