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Northstar Polymers MSB-M25B Microcellular Foam based on High Performance Polyester Polyurethane

Category Polymer , Thermoset , Polyurethane, TS , Thermoset Polyurethane Foam, Unreinforced
Manufacturer Northstar Polymers
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Northstar Polymers MSB-M25B Microcellular Foam based on High Performance Polyester Polyurethane.pdf
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Material Notes:
This high performance polyester microcellular foam system is one of a family of polymer systems developed by Northstar Polymers for demanding work environments. Urethane foams molded with this system exhibit high tear strength, excellent oil resistance, and outstanding abrasion resistance. They also meet the requirements of 21 CFR 177.1680, FDA direct dry food contact. When the packing factor exceeds 1, an integral skin will develop with properties approaching those of the cast elastomer. For long-term use in constant aqueous environments, consider a polyether or hybrid product system.Information provided by Northstar Polymers.
Physical Properties Metric English Comments
Density 0.316 g/cc
0.0114 lb/in³
Free Rise Density
0.400 g/cc
0.0145 lb/in³
Compressed Density
Mechanical Properties Metric English Comments
Hardness, Shore A 60
60
ASTM D2240
Rebound 19 %
19 %
Bashore Rebound; ASTM D2632
Processing Properties Metric English Comments
Processing Temperature 21.1 - 32.2 °C
70.0 - 90.0 °F
Prepolymer Temperature
60.0 °C
140 °F
Curing Agent Temperature
Mold Temperature 43.3 °C
110 °F
Cure Time 180 min

@Temperature 43.3 °C
3.00 hour

@Temperature 110 °F
De-mold Time
480 min

@Temperature 82.2 °C
8.00 hour

@Temperature 180 °F
Complete Cure Cycle
2880 min

@Temperature 25.0 °C
48.0 hour

@Temperature 77.0 °F
Complete Cure Cycle
Pot Life 1.00 min
1.00 min
Descriptive Properties Value Comments
Curing Agent SBA-027
Mixing Time 20
minimum for mixing by hand
Prepolymer MNA-014
Weight Ratio 1:1.89
Prepolymer to Curing Agent Ratio
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