ART OF STAINED GLASS HOW TO SOLDER STAINED GLASS Fill Gaps and Burnish Fill in the gaps with melted solder, and "burnish," meaning to cover all the visible foil with a thin coat of solder. Worry about appearance in the next step. To view a video of the gap-filling and burnishing step: Bead Lead Lines Next, make your lead lines look nice and neat. Apply a generous amount of solder to the lead lines. If the lead line does not appear smoothly beaded, touch the uneven area with the tip of the soldering iron to re-melt it. To view a video of beading: Soldering, copper foil technique page 1 page 2 page 3 page 4 page 5 page 6 page 7