Indium Wire Solder 52890-0454 CW-807 Flux Core SAC305 Alloy Sn96AG3 .032 in., 1lb.

I ordered this as part of my move to a lead-free workshop. The melting point is certainly higher than with 60/40, but I've gotten fine results out of it by pushing my iron up to 275C. I can manage solid joints with SMT components running as low as 230. The no-clean flux really is no-clean. I have observed no build up of fluxing solids, and I have had no cold joints after adjusting the iron temperature.I did have to add a little bit of flux to get good wetting on components with thicker leads. That rarely happens with 60/40, but the melting point difference makes it no surprise. I'm willing to add a drop of flux occasionally to get away from lead solder.I definitely recommend purchasing a stand for it. A 1lb spool is unmanageable any other way.

This is Indium's CW-807 solder sporting a standard SAC305 alloy (tin, 3% silver, 0,5% copper). CW-807 is a "no clean" rosin solder. It's been pretty good on older assemblies and new projects. Flux is a J-STD-004B type ROL0 with good SIR and minimal electromigration. Not much smoke. What there is isn't harsh but has an oddly sweet smell. Not "raspy" like vintage Relicore 11 RMA that I use sometimes. For odor I still prefer the classic Kester 44 but a filter-fan is the smart way to deal with that aspect.

I've found this to be the most difficult SAC305 .032" (of the three) that I've used. It may be the case that it would be fine if it were .025". I bought a different spool and use it instead.

I do not like use of the extremely misleading name "Indium Wire Solder". This product is alloy SAC305, which is a lead-free alloy that contains 96.5 % tin, 3% silver, and 0.5% copper. Nothing wrong with that alloy, if you are looking for that, but you would have to go look this up for yourself to discover what you are really getting is not what the name says. The vendor does not make any attempt to clarify that the name "Indium" is only a company name, and the product in fact contains no Indium at all. Seems pretty purposeful, and not just an oversight. The vendor dances around the misleading name relative to composition, focusing mostly on the flux and saying "Blend of traditional flux-coated solder wire with modern flux technology". Is this an "out"? Like, "We told you it was just traditional solder."Actual Indium alloy solders are increasingly valuable as safe temperature lead-free solders not subject to "tin pest" cold environment failures. That is not what this product is, and nowhere does the product description clarify the misnomer. Note that you can see the same misrepresentation of solders proliferating in other on-line sales venues like eBay. A high trust factor is a key motivator among Amazon customers, and vendors need to be asked to adhere to standards of clarity in product representations.