Hi, Have read lots of posts regarding soldering, etc. My question may be off the beaten path. Why can't you put a drop of a superglue where the track meets the joiner. This would insure a secure connection, keep the joiner and rail in contact for good electric flow, and could be undone with a suitable product that neutralizes the glue. Every 3 feet I'd still solder a feeder and leave a gap for expansion. Regards, groundnull
Superglue is not conductive, so if anything it would interrupt electrical contact. I also don't believe it would be strong enough to hold rails in position on curves, although there's nothing to stop you from trying. In summary, I don't understand your thinking. I think that supergluing rails at joiners would either make no difference (mechanically) or make things worse (electrically).
In addition to what Ben said, solder with flux will spread into all the nooks and crannys of your joint where as superglue will only stick to where it's put. I think in the end, superglue would be way more expensive and WAY more difficult to work with that solder.
I've tried super glue for insulated joints on curves. It didn't really stick all that well. I did have slightly better results with 5-minute epoxy, but it still wasn't as easy or strong as a soldered joint. Personally, I'd stay with soldering....
Super glue might work but then yuu'd need a feeder on every section of rail. Chemicals to cut the glue may damage scenery materials too. Solder joints can be separated. Just heat and pull. A dab of flux and they can be heated and re-connected.
If you are laying flex track on straightaways you don't really need anything but the joiner to hold the track together. Soldering feeders to each length of flex should eliminate any power continuity issues. Using CA in the joints will not help with electrical continuity. Soldering joints on curves is for strength. CA would be too soft and may not hold the rails in alignment. Also leaving small gaps will allow the rails to move with temperature fluctuations.
