Extremely strong and durable professional gun for sealants and adhesives GUDFOR ULTRA HIGH TACK. Perfect for gluing with any glue, including very thick ones. Suitable for sealing acrylic, silicone and polyurethane. Ensures simple, easy and accurate seam application. The bottom of the case with edges prevents the cartridge from popping out. Extremely strong 2mm thick housing. Extremely carefully ground hardened metal push rod ensures very precise work.Users manual – surfaces must be clean, free of grease residues. Cut off the end of the cartridge tip and screw the nozzle included in the kit onto it. Insert the cartridge into the syringe gun and fill the nozzle with sealant by squeezing the trigger of the gun several times. To pause, press the brake at the top of the handle. To remove the cartridge, press the brake and pull the rod towards you.