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Paste solder sparks and sputters


#1

I retired about 1-1/2 years ago and started trying my hand at making
sterling silver jewelery.

I don’t have a problem with using sheet or round silver solder with
Handy Flux but every time I try to use the paste solder it sparks
and sputters all over the place and leaves a black residue at the
joints.

Is it the solder or is it something I am or am not doing?

Thanks
Tom Kuzia


#2

Try heating it more slowly.