TECHNICAL DATA SHEET
Product Name: Norst® PB-800
Classification
Proprietary butyl compound of 100% soilds
Applications
A primary application is the improvement of strength and elasticity in hot melt adhesives.
Typical Usage
Hot melt sealants
Pressure sensitive adhesives
Asphalt modification
Benefits
Builds strength in hot melt adhesives
Stops cold flow and migration when combined with polybutenes, butyl rubber, unoxidized asphalts
Ball and ring of most systems is not affected
Melt viscosity is low relative to its melt point and solid point
Builds strength in asphalts
Average Properties
Chemical resistance comparable to polyisobutylene
Viscosity
200,000-240,000 cps at 350ºF using Brookfield HBT Model with a no. 6 spindle at 20 rpm
Compatibility
Compatible with aliphatic resins, oils, asphalts and polybutenes, butyl rubber, ethylene propylene rubbers, etc.
Color
Light amber to light brown