triumphs
[Top] [All Lists]

Re: powdercoating and heat

To: Doug Bach <db10782@insync.net>
Subject: Re: powdercoating and heat
From: Susan and John Roper <vscjohn@huntnet.net>
Date: Sat, 27 Mar 1999 10:51:30 -0600
Cc: Mark Gendron <mister_toad@email.msn.com>, Triumphs <triumphs@autox.team.net>
Organization: Vintage Sporting Cars
References: <001a01be77a9$29d732a0$14fd2599@toadstool> <36FBC234.76F44C29@huntnet.net> <36FC5335.EB2F8BA9@insync.net>
Doug, agreed.  I used the cure temp only to demonstrate stability of composition
at temps well above what they should see in engine service.  If your engine
temps are above 250 you have a problem.  John

Doug Bach wrote:

> John,
>
> Remember, the coating only sees 400 F. during the curing process for a short
> period of time.  Extended exposure to high temps can (and will) cause color
> change in lighter colors, and may lead to decomposition of the coating after
> extended periods of exposure.  The chemistry of the coating is critical,
> epoxies and epoxy/polyester hybrids will show the most discoloration, and
> TGIC polyester and aliphatic urethanes the least.  Ask about the composition
> of the coating to determine the suitability for the application.
>
> Doug
>
> Susan and John Roper wrote:
>
> > You cure it at 400 so it can handle most of what an engine would see, but
> > not the exhaust.  Eastwood has developed a maroon to match the MG engine
> > color.  Its neat stuff when you get it on properly.  John




<Prev in Thread] Current Thread [Next in Thread>