[PAR_WIG1350]

Originally Posted by JesseK

Garolite G10: http://www.matweb.com/search/DataShe... d5f85&ckck=1

G10-FR4 may be slightly different because the "FR4" stands for "Fire Retardant" (implying a different chemical composition for the resin), as explained in the notes section of that link.

Polycarbonate: http://www.matweb.com/search/DataShe...5030fc9 84f35

The polycarbonate link is 1 result from a search that returned over 1000 polycarbonate types, so consider it a generic estimate. For example, the "Unreinforced Polycarbonate" result lists a density of up to twice what the generic one lists, but is a range of densities rather than a specific density. Who knows what the polycarbonate from McMaster is

I think you wanted this PC, not PC/ABS or PC/acrylic 'alloys'