Does anyone know what type of plastic is used for the 69 dash bezels. I may have a way to repair the dreaded radio hole hack job done on most dashes. 3 out of my 4 bezels have been tortured in this manner. I'm limited to using either a polyester or polyurethane compound based on the technique I want to use. I'm hoping for something a little more than "ABS" in hopes of figuring out which material would get better anchorage or if I would need to use a priming compound.