TECHNICAL DATA SHEET
Product Name: Norst® PB-400
Classification
Proprietary, butyl compound of 100% solids
Applications
Hot melt adhesives
Hot melt sealants
Benefits
Excellent low temperature flexibility
Excellent low temperature adhesion
Excellent sag and flow resistance at high temperatures
Average Properties
Chemical resistance is comparable to polyisobutylene. Norst® PB-400 has no cold flow but will melt at high temperatures.
Viscosity
50,000 – 55,000 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
Gray to amber
Packaging
Solid block form in corrugated boxes, 45 pound net weight.