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 2 mm. thick housing. Extremely carefully ground hardened metal push rod ensures very precise work.