Scotch-Weld Hot Melt Applicator Polygun EC multiple temperature adhesive applicator that can be used for a wide range of jobs. It Provides Multiple Temperatures with Choice of Pre-Set Temperature Module Kits that Insert Into the Handle. Comes equipped with .090 in tip (#9921). This versatile applicator can be used for a wide range of jobs. It provides multiple temperatures with choice of pre-set temperature module kits that insert into the handle. Capable of dispensing new low melt 3M Scotch-Weld adhesives.