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Northstar Polymers GK-22 Polyurethane Gel for Adhesion Pad Applications
Categories: Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Elastomer, Unreinforced

Material Notes: GK-22 is a polyurethane gel formulation designed to make soft sticky polyurethane gel for pressure-sensitive-adhesive type products. This 2-part cast urethane system can be manually processed easily at room temperature. There is no volatile compound within the component materials and no need to dry solvent. This material cures without relying on moisture or oxygen in atmosphere to cure, so this product can be made into any thickness.

Comparing to other similar formulation GK-7, GK-22 provides stronger adhesion property. GK-22 may be more appropriate where heavier object needs to be held by the gel adhesive pad, or a sufficient adhesion is required within a limited amount of gel adhesive piece.

Information provided by Northstar Polymers.

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Processing PropertiesOriginal ValueComments
Processing Temperature 72.0 - 86.0 °FPrepolymer Temperature
 72.0 - 86.0 °FCuring Agent Temperature
Mold Temperature 72.0 - 86.0 °F
Cure Time 2.00 hour
@Temperature 25.0 °C
De-mold Time
 48.0 - 72.0 hour
@Temperature 25.0 °C
Complete Cure Cycle
Pot Life 12.0 - 13.0 min
 
Descriptive Properties
Curing AgentPNA-216
PrepolymerMPC-056
Weight Ratio1:4.66Prepolymer to Curing Agent Ratio

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PNORTH855 / 162571

Specialty Compounds RTP Company

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