West System 5:1 Ratio Positive Displacement Pump 305

This pump delivers 2.0 fl oz of resin and hardener per full stroke of the dispensing lever. For use with 105 Epoxy Resin® and 205 Fast Hardener® or 206 Slow Hardener®. The 305 High-Capacity Pump is robust and dispenses epoxy faster than any pump we’ve ever offered. It works by trapping a fixed amount of resin and hardener and then forcing (displacing) that trapped volume into the discharge pipe or system. This offers improved epoxy pumping performance because changes in viscosity due to temperature change are no longer an issue. The reservoirs hold two gallons of resin and one gallon of hardener. It is designed to accurately dispense WEST SYSTEM resins and hardeners at a 5:1 by volume.