AccuChop is a process control package used in fiberglass lay-up applications which provides features for resin and glass delivery rate control and display, as well as various detection alarms. AccuChop is designed for both gelcoat (resin and catalyst) and chopped fiberglass (resin, catalyst and glass) applications. Both resin flow and glass feed can operate under open loop or closed loop control. The functionality provided also handles error recovery events and does not require PLC logic to spray parts.