Shop for Machine Grade Polycarbonate rods. Machine grade polycarbonate rod, a low stress polycarbonate, with high impact strength over a wide temperature range, is used in many applications that require heavily fabricated, tight tolerance parts such as electrical insulator components. Standard and custom colors available. Have machined into fabricated parts. Stocked materials typically ship in 2-5 business days. Can’t find what you need? Get a quote.