WEST SYSTEM Epoxy Metering Pumps are calibrated for reliable metering of WEST SYSTEM Epoxy Resin and Hardener at the proper mix ratio while eliminating mess and guesswork. The correct epoxy resin-to-hardener ratio is important to ensure that the epoxy reaches its full potential for cured physical properties. Our pumps come in various capacities suitable for every epoxy user, whether you use epoxy only occasionally for small projects or use great quantities of it daily in a major manufacturing operation.