Re: [CR]Copper plating 531 Steel frames and lugs

(Example: Framebuilding:Technology)

Date: Wed, 27 Dec 2006 21:30:18 -0500
From: "gabriel l romeu" <romeug@comcast.net>
To: philip bailey <bailey.philip@gmail.com>
Subject: Re: [CR]Copper plating 531 Steel frames and lugs
References: <47b23c0b0612251254l40e3b2f8l33ce7df48ec39fb2@mail.gmail.com> <043301c7289b$16c4d9f0$0a00a8c0@corp.rfweston.com> <47b23c0b0612270744h4f54410bw8caf290af85ed063@mail.gmail.com>
In-Reply-To: <47b23c0b0612270744h4f54410bw8caf290af85ed063@mail.gmail.com>
cc: classicrendezvous@bikelist.org

philip bailey wrote: > Thanks Charles, > > I saw Bob Brown's site reference to a powder coater and that looks > interesting as well. > Half the cost (at least!), robust paint, but once its on, it would be

hard > to change. > Since its charged on metal, you almost have to 'grind' it off which is not > good for thin steel structure.

the charge is strictly for the adhesion of the powder to the metal before curing. It is a very durable and secure surface as Philip observes if the proper prep is acheived, and a lot has to do with it's adhesion, polymer constituents, and encapsulation properties.

It is commonly either boiled off or chemically removed in commercial application. http://tinyurl.com/yjquuq http://tinyurl.com/yekhxg

I have removed it mechanically by both sander and sandblaster. a bit more effort than removing paint.

you can paint over it.

I am currently experimenting with masking and resist applications, this is a bit more difficult than paint due to the curing temperatures. Gradations are less predictable as well, there is color shift in the curing. the simple effects of texturing and veining expands possiblities in powdercoating. -- gabriel l romeu chesterfield nj usa ± http://studiofurniture.com Ø http://journalphoto.org ±