Homebrew PCBs

mpdickens wrote:
> 
> Your right. You nailed me ;) Most of the stuff they
> sell in stores that is labeled "Epoxy" is really
> polyester resin. In fact, true epoxies have to be
> heated in order to cure (In an autoclave). 


Then in that case most of the retailers have got the 
labeling wrong. If they call polyester resin "Epoxy" then 
what do they call polyester resin ?
A shop I went to made distinct differences between the epoxy 
resins and polyester resins they sold. If I buy a two part 
resin which part A is labeled "contains %100 epoxy" and part 
B is labeled "contains: > %70 aliphatic amines", then is 
that  polyester or epoxy ? , it doesn't need autoclaving