I wonder if anyone can help me? I have been asked to make some cufflinks, but I'm having trouble soldering them. I have the assembled cufflinks that cookson sell. I've been fluxing the back of the decorative part and the base of the cufflink, putting a pillion of easy solder on the back and heating the decorative part then lowering the cufflink onto it as the solder melts, but as soon as I put it in the pickle the back drops off. Also as the flux bubbles the solder slides around and then isn't in the correct place.
I would really, really appreciate any advice on this.