NOTE: Continue sanding the domes until the edges are flat rims that fit together and come to a fine point [PHOTO 5]. Make sure each rim has enough surface area to hold plenty of metal clay paste.
Paste the lentil halves together. Using a fine-tip round paintbrush, apply metal clay paste to the entire rim of one dome [PHOTO 6]. By the time you return to the spot where you started, some of the paste may have started to dry; rinse the brush and apply water to the paste to remoisten it. Immediately join the two domes.
Use a dry brush or your fingertip to quickly lift off any paste that oozes out of the seam, cleaning the brush or your finger after each stroke. When you’ve removed all the excess paste, wet your fingertip and rub lightly around the seam to smooth the join.
Refine the seam. Sand the seam with an emery board, if necessary, and then with 400-grit sandpaper. Fill any gouges or scratches with metal clay paste, and do any needed cosmetic repairs. Dry the lentil completely. Then sand it a final time, ending with 600-grit sandpaper.
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