This Positive Displacement Pump dispenses three parts resin and one part hardener (3:1) by volume. It consists of two separate parallel pump systems, one for the resin and one for the hardener. The two systems are operated simultaneously by a single lever. The pump delivers 2.3 fl oz of resin and hardener per full stroke of the dispensing lever. The reservoirs hold two gallons of resin and one gallon of hardener. For use with 105 Epoxy Resin and 207 Special Clear Hardener or 209 Extra Slow Hardener.
The 303 Positive Displacement 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 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 pump is calibrated for WEST SYSTEM 3:1 ratio epoxies (with 207 Special Clear Hardener or 209 Extra Slow Hardener) and is easily identified with a red base. (The 305 Positive Displacement Pump is calibrated for 5:1 ratio epoxies with 205 Fast Hardener or 206 Slow Hardener and has a blue base.) Pricing on positive displacement pumps are listed on the WEST SYSTEM Price List.
Positive Displacement Pumps may also be ordered with drum fittings. These connect directly to your WEST SYSTEM Resin and Hardener drums so there is no need to decant materials. This set up conveniently streamlines the metering process for high-volume users, saving both time and money.
Read more about mixing large batches of epoxy with Positive Displacement Pumps at Epoxyworks.com.