Not really. Because there is so much mass the lead will take over 3 hours
to start solidifying. The flux should float to the surface and be washed and
ground away in the post casting operations.
--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"derbyrm" wrote in message
news:V9HQf.854379$xm3.37448@attbi_s21...
Oops! Acid flux depends on being washed off after soldering. Might this
be a problem?

Roger

http://home.insightbb.com/~derbyrm

"Glenn Ashmore" wrote in message
news:mUiQf.497330$0l5.326643@dukeread06...

snip

With my small diameter tube I am not to worried about the bond but I will
sand blast the whole bolt frame/condenser assembly and paint the tubing
with an acid flux formulated for tinning copper pots. I found that the
copper/nickel wets out much better with it than regular acid solder flux.