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Ensinger PEI

Northstar Polymers MGG-A70DQ High Performance Polyurethane Cast Elastomer System 70A
Categories: Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Liquid

Material Notes: This is a PTMEG/MDI base high-performance polyurethane casting system. This system is recommended to applications in which the part requires high rebound, slide abrasion, constant water contact and high elongation. Possible applications for this material include roller skate wheels, bumpers, abrasion resistant liners, rock/sand sizing screens and other specialty applications. Unlike conventional full-prepolymer systems, quasi system formulation improves processability, in-mold flow, and components mixing by use of low viscosity prepolymer. This results better physical properties of the products. Can be approved for FDA dry food contact.

Information provided by Northstar Polymers.

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Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 7070ASTM D2240
Tensile Strength 26.2 MPa3800 psiASTM D412
Elongation at Break 900 %900 %ASTM D412
Rebound 65 %65 %Bashore Rebound; ASTM D2632
Tear Strength 35.1 kN/m200 pliSplit; ASTM D624
 61.4 kN/m350 pliDie C; ASTM D624
Taber Abrasion, mg/1000 Cycles 3.03.0ASTM D4060
 
Processing PropertiesMetricEnglishComments
Processing Temperature 25.0 °C77.0 °FCuring Agent Temperature
 82.2 - 93.3 °C180 - 200 °FPrepolymer Temperature
Mold Temperature 82.2 - 93.3 °C180 - 200 °F
Cure Time  30.0 min
@Temperature 93.3 °C
0.500 hour
@Temperature 200 °F
De-mold Time
 960 min
@Temperature 82.2 °C
16.0 hour
@Temperature 180 °F
Complete Cure Cycle
Pot Life 2.50 - 3.00 min2.50 - 3.00 min
 
Descriptive Properties
Curing AgentGBA-054
PrepolymerMGA-018
Weight Ratio1:2.939Prepolymer to Curing Agent Ratio

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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