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Subject: Re: [Homebrew_PCBs] Re: how can i prevent corosion?

From: Stefan Trethan <stefan_trethan@...>
Date: 2003-12-03

> Any resins that are mixed with an amine are epoxies.
> Bisphenol-A is an amine. If your not having to
> autoclave it, then the 70% aliphatic amines are mixed
> with 30% (Or maybe less...) of something that causes
> an exothermic reaction. Epoxy has got to have heat to
> cure. The strength of the non autoclaved, but cured
> expoxy would, in my opinion, not have the strength
> (But it would still be stronger than polyester resin)
> that epoxy that was cured in an autoclave would have.
>

> Marvin Dickens
> Alpharetta, Georgia USA
>

I was told that curing the epoxy in an oven at 80 degree or so
improves the strength, even if it is hardening only by mixing the 2
components too.
The "epoxy" i have (e.g 5 minute 1:1) gets warm when it cures, but not hot.
I had never problems with the strength, and never tried baking it...

st