Buy direct from the manufacture and save! HM-135 is a fast setting, economical cool melt for packaging operations. It exhibits excellent bonds on a wide variety of board and paper stocks. It has excellent heat stability and low viscosity for good machining on all standard hot melt application equipment. This formula was originally created for post machines. HM-135 exhibits aggressive tack, which is important where short compression sections are encountered. Please contact us if you have any questions. Specifications Application Temperature : 250°F Color : Opaque Yellow Form : Mini Chips Softening Point : 169°F Viscosity @ 350°F : 1250 cPs