The water soluble stuff doesn't flow as well as good old rosin core,
that's for sure. But it should still flow through to the component
side at 700 F. I've found I have to use more of the water soluble
solder to get the same coverage that I get with rosin core, maybe
about 50% more. I've had one or two strands of water solutlbe stuff
(supplied in motm kits) that seemed to not want to flow as well as
the other strands. They seemed to lack flux, so I just tossed them
out and used other strands instead. Maybe you have a flux-less strand
as well.
Another Scott
At 10:58 PM -0700 2002/06/10, Scott Evans, Gen Mgr wrote:
>Hello all!
>
>I have just started my first PCB project with the Kester organic water
>soluble solder. Having been used to rosin core solder for 35 years or
>so, I am finding it a bit difficult to determine the proper technique
>for this stuff. I have the soldering iron set to about 700 Fahrenheit,
>as I was used to production line work when working as a technician. The
>solder does not seem to "flow" as well as the rosin core solder. Can I
>achieve better results with a lower temp? Or is this just the nature of
>the product? I don't seem to be getting the flow of solder through to
>the component side of the board. Any hints would be appreciated.
>
>Scott (just an old guy trying to adjust) :)