Marvin Dickens wrote:
Regarding water soluable solders, take a look at:
http://www.tselectronic.com/solder/solder.html?tse_Session=87ad1697d9d7666613a61c09428f3791
Water soluable solder paste is also readily available. In fact, water
soluable solder products are available in
any form factor you can think of.
I'm a huge fan of water-soluble flux, and prefer it when doing SMT
stuff. Of course, it's a little less reactive than rosin, so you need to
really inspect your joints after soldering.
My only complaint, and it's a small one, is that you really do have to
clean it off. The flux is naturally hygroscopic and will, over time,
increase its conductivity to the point of affecting the surrounding
circuit. This is only a problem if you use the water-soluble flux on
everything including prototype boards you might normally leave
uncleaned. Fortunately, cleaning the flux off the board is such a
trivial matter there's no real excuse for leaving the flux on.
--
Marshall Jose, WA3VPZ
Johns Hopkins Univ. Applied Physics Lab., 240-228-4367
