The bindings/purflings have been a small challenge. I had to install them in several steps.
First I melted the bwb and ivory black together (see the previous post). Then, I glued on the stacked purfling.
Next the ivoroid binding is glued on using a combination of medium viscosity cyano-acrylate glue and a slurry of acetone and binding material.
The acetone and glue make the binding a purfling expand, so it will have to set for a few days to gas off before scraping and shaping to final size.