TECHNICAL DATA SHEET
Product Name: Norst® PB-500
Classification
Proprietary compound of 100% solids based upon butyl and ethylene propylene rubbers
Applications
Hot melt adhesives
Hot melt sealants
Asphalt modification
Benefits
Builds heat resistance in hot melt adhesives
Builds strength in hot melt adhesives
Melt viscosity is low relative to its melt point and solid point
Stops cold flow and migration when mixed with polybutenes
Viscosity
75,000-95,000 cps at 350ºF, using Brookfield HBT Model with a no. 6 spindle at 50 rpm
Compatibility
Compatible with aliphatic resins, oils and rubbers. There may be compatibility problems with resins that contain aromatics.
Color
White to off white