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Northstar Polymers MGB-A80AQ High Performance Polyurethane Cast Elastomer System 80A

Category Polymer , Thermoset , Polyurethane, TS , Thermoset Polyurethane, Liquid
Manufacturer Northstar Polymers
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Northstar Polymers MGB-A80AQ High Performance Polyurethane Cast Elastomer System 80A.pdf
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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.
Mechanical Properties Metric English Comments
Hardness, Shore A 80
80
ASTM D2240
Tensile Strength 25.67 MPa
3723 psi
ASTM D412
Elongation at Break 554 %
554 %
ASTM D412
Rebound 63 %
63 %
Bashore Rebound; ASTM D2632
Tear Strength 22.8 kN/m
130 pli
Split; ASTM D624
71.9 kN/m
410 pli
Die C; ASTM D624
Taber Abrasion, mg/1000 Cycles 20
20
ASTM D4060
Processing Properties Metric English Comments
Processing Temperature 25.0 °C
77.0 °F
Curing Agent Temperature
82.2 - 93.3 °C
180 - 200 °F
Prepolymer Temperature
Mold Temperature 82.2 - 93.3 °C
180 - 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 min
2.50 - 3.00 min
Descriptive Properties Value Comments
Curing Agent GBA-042
Prepolymer MGA-018
Weight Ratio 1:2.232
Prepolymer to Curing Agent Ratio
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