Been experimenting with the silver epoxy to join the rails at the joiners and bypass having to solder feeders to each section of track.
From a silver epoxy website: "The product is designed for conductive bonding applications in microelectronics in place of lead tin solder or other alloys to avoid flux contamination or exposure to excessive temperature, and for process simplification."
My experiments show that the bond at the joiners are rock solid. I tried all sorts of pulling/flexing and the silver epoxy held strong. No drop in resistance at all across the joints. It appears to me the silver epoxy chemically bonded to the silver in the rails? I'm not a chemist but it sure looks and feels like it did.
When done right I can't even tell the epoxy has been used. I did allow some to remain in the rail gap and it's almost like having welded rail.
Am going to power my new layout with this idea... if I turn out to be wrong then I'll solder feeders on in. But right now it looks like one could go quite some distance without feeders.
Thanks.
Chuck
