Teflon coated - non-stick, easy clean! This is a high quality Teflon Coated PU Foam Gun with an enhanced ergonomic design for regular, heavy duty professional trades use. A teflon (PTFE) is used as a coating to reduce time spent on cleaning and maintenance. Commonly used in the sealing of cavities, common when fitting windows, door frames, roofing etc. with adjustable flow controller. For use with standard 500/750ml gun grade canisters. Body, adaptor, non-returnable valve and nozzle is Teflon coated to help prevent foam from sticking to the gun and facilitates cleaning.