Problem soldering stained glass?
I just made my first stained glass window and assembled it on a piece of 3/4″ exterior plywood with wooden stops along two sides to hold it while I put it all together. I was able to solder the leading without any problem but when I turned it over and attempted to solder the back side (the side that had been resting on the plywood for about three weeks) the solder would not take to the leading, even though I cleaned it and applied flux the same way I did on the first side. The solder beaded up and rolled off the lead and would not adhere. I am wondering if vapors from the plywood (such as fomaldehyde) might have somehow chemically altered the lead so as to prevent 60/40 solder from bonding properly. Has anyone experienced anything like this? And why when I clean it the solder will still not stick? I have been soldering things for 30 years and I have NEVER had this problem before.
MindsEye
on February 6th, 2012
Hi. My only suggestion is to not use ordinary flux but use ‘Active’ flux. Mild oxidisation, that I think you’re experiencing, should no longer be a problem. Try a local plumbers merchant or DIY Supermarket for the flux.
Fly
on February 6th, 2012
there are some pretty hairy chemicals in modern laminates and particle boards so i’m pretty sure you are right.
it might be worth trying a lead free solder or an alternate brand of flux.
FollowTheLeader
on February 6th, 2012
try some “tinning” paste flux…its good for everything but tooth paste.
Bambi
on February 6th, 2012
I don’t know the answer. Just wanted to let you know that I’ve enjoyed your answers. Never fails to put a smile on my face.