The patented 350 system consists of a unique muscle valve, a controller, reservoir and accessories. It is used to dispense small (pinpoints) to moderate quantities (3 ml) of high viscosity pastes, either filled or unfilled (solder creams, filled epoxies, RTV's and grease). The 350 also provides controlled pullback at the end of the dispense cycle. This instrument is compatible with multi-nozzle arrays, workstations, automatic machinery, and robotic application.