I've done quite a bit of soldering with stainless steel, since most of my pushrods and my RDS hardware is SS. I simply use acid flux, aka "tinner's fluid", together with ordinary soft solder and a normal soldering iron. Nothing fancy. The acid flux is hydrochloric acid with zinc chloride salt -- not really toxic, just corrosive.
I thoroughly clean the SS with clean 320 grid sandpaper, apply the flux, and touch with the molten solder. About half the time the solder doesn't grab completely, just in some spots. No problem... I just keep applying flux to the piece (while hot), until it tins completely. Two or three tries usually does it. If you're worried about corrosion, a good trick is to first tin the SS using the acid flux, and clean it completely. Then you can use regular rosin flux to make the actual joint. I never use "high strength" solders which require a torch, because a torch will turn hard piano wire or most hard SS into soft annealed coat-hanger material, which usually defeats the purpose of the strong solder. This is not a problem with soft solder. RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
