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PENSEL GA-90 is a glycerol rosin ester. PENSEL GA-90 is based on Chinese Gum Rosin and produced by Guangxi Wuzhou Arakawa- China. PENSEL GA-90 resin can be used in various adhesive applications and with a variety of elastomers. PENSEL GA-90 gives excellent performance in adhesion and provides heat stability to the end use applications. PENSEL GA-90 is especially engineered to provide these properties with EVA.

Chemical Family: Esters, Rosins

End Uses: Hot Melt Adhesive, Pressure Sensitive Adhesive

Compatible Polymers & Resins: Acrylics

Features: Heat Resistance, Weather Resistance

Technical Data Sheet
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Identification & Functionality

Chemical Family
CASE Ingredients Functions
Technologies

Features & Benefits

CASE Ingredients Features
Benefits
  • Good compatibility for various elastomers
  • Good heat stability
  • Giving excellent performance in adhesion
Characteristics
  • Good oxidation
  • Weather and heat resistance
  • Good compatibility with EVA, rubbers and acrylic polymer

Applications & Uses

Compatible Polymers & Resins
Compatible Substrates & Surfaces
Uses
  • Acrylic PSA
  • HMA
Application

PSA tape, PSA label, Packaging, Book binding

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Color (Gardner)5 max.
Acid Valuemax. 7
Acid Value7 max.
Softening Point87-93°C
Softening Point88 - 93°CR&B
Mn (Typical)770
Mw/Mn (Typical)1.3
Specific Heat84°C
Melt Viscosity (150°C)4650cps
Heat Stability (180°C, No Skinning)96hours
Cardboard/Aluminum (5°C)1.15/25kg/mm
Cardboard/Aluminum (20°C)Partially Destructed
Cardboard/Aluminum (35°C)Destructed
Cardboard/Aluminum (50°C)1.50/25kg/mm
PE/Aluminum (20°C)1.60/25kg/mm
Creep Resistance (min. 60°C x 500g, Cardboard/Aluminum)60

Technical Details & Test Data

Heat Stability
Heat Stability PENSEL GA-90
Melt Viscosity (cps) at 180°C 110
Initial Color 4
2 hours 4+
4 hours 4+
8 hours 4+
Clouding Point with EVA (°C), *1 max. 50
  • Measured by Brookfield type viscometer.
  • Checked a sample (30g) in an oven at 180°C.
  • 1: The ratio between EVA #220 and resin is 1:1.

 

Packaging & Availability

Packaging
  • 55.115LB (=25 KG) paper bags
  • 35 bags per wooden skid