Why a REX Workshop? Twin screw extruders facilitate reactions and create polymers that might otherwise be difficult, if not impossible, to synthesize in a batch process. The extruder is a small mass device (melt pool inside screw flights and a barrel) that mixes and conveys both high and low viscosity materials, generates high interfacial areas between differing phases of materials, efficiently contacts gases and liquids with high viscosity polymers, and is ideally suited to process small percentages of a component into a complex formulation. The result is a continuous process with better manufacturing efficiencies, improved product quality, and shorter reaction times as compared a batch processing. Scale-up from lab to production is easier too.