Dynapol S 341 Thermoplastic copolyester Degussa Polyester ADHESIVE >> Hot-melt Dynapol High molecular weight thermoplastic copolyester. Used as a raw material for hot melt industrial adhesives. Offers low water uptake. Moderately crystalline copolyester moderate open times good adhesive strength still good heat resistance Dynapol S 341 Provides adhesion to leather, paper and cardboard. High molecular weight, moderately crystalline, thermoplastic copolyester. Used as a raw material for hot melt industrial adhesives. Offers low water uptake. Provides moderate open time, good adhesive strength, still good heat resistance and adhesion to leather, paper and cardboard.