GPPS or HIPS: choosing the right polystyrene for your part
Clarity and stiffness versus impact strength. How GPPS and HIPS polystyrene resin differ in packaging, disposables and appliance parts, and what to compare on the datasheet.
What to check on a PP resin datasheet before ordering
Polymer type, melt flow rate, stiffness, impact and HDT: what the numbers on a polypropylene datasheet mean for your molding window, and what to confirm before you order.