|Amber imitation beads made from high impact polystyrene|
|Re: Newly made from some kind of thermoplastic resin -- Rosanna||Post Reply||Edit||Forum||Where am I?|
I sent one of the light yellow beads to a plastics lab for analysis and it tested as high impact polystyrene by FTIR. A hot needle test gave a distinct styrene odor, and the material was tacky when touched with acetone (my tests). I would like to know when this material entered the West African bead trade - if anyone has an idea about this, I'd love to hear from you! I'm guessing post - WWII for sure, maybe around the 1980's. These beads appear to have some age on them, so I don't think they are really recent.