The viscosity, spread and flow characteristics of these cartridges were specially formulated for use in Holz-Her machines. Dorus adhesives will not clog or block the application nozzles on the special glue application head. Processing Temperature: 200-220C (392-428F). Feed speed (Holzer machine): minimum 30 ft/minute. Heating time: 2-4 minutes. Medium Speed, recommended for veneer, polyester, PVC, melamine, solid wood, thick PVC and ABS. 45 cartridges per box, sold per box. Clear in color.