Universal adapter: zinc alloy and TEFLON coating Back adjusting screw: brass Popular model for European and American markets Spray gun is used for injecting polyurethane (PU) foam sealant, such as 750 and 500mL volume in can/tinThe application ranges are mainly below:Immobilization and installation of the door frameInstallation and sealing of the window frameFilling, sealing and heat preservation of bathtub, bathroom and so onMoisture-resistant and heat preservation of wall and roofImmobilization and insulation of the stuff/object indoorFilling and sealing the gap between pipe and wallLeak-free monolithic seal over entire roof deck/substrateOther fields of or related to building material

PU foam gun