Buhnen HB 500 EHT hot melt applicator for very high temp materials. Common applications are very high application temperature polyamide adhesives. Simple design with very durable construction. Original model was sold in the 1970's and has seen little changes since. Full digital temperature control with auto standby feature. Works with adhesive slugs, bulk pellets or pillows. When used with glue slugs the output per hour of the tool is more than doubled when compared to using bulk format adhesives.