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Northstar Polymers MPS-F04A Hand-Mixable Flexible Foam

Category Polymer , Thermoset , Polyurethane, TS , Thermoset Polyurethane Foam, Unreinforced
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 MPS-F04A Hand-Mixable Flexible Foam.pdf
Price EMAIL US    sales@lookpolymers.com
  Online Service   lookpolymers   27660005
Material Notes:
This foam formulation is designed to make molded flexible foam parts/sheets/dies/blocks by hand-mixing or by the meter dispensing equipment. The components are stable liquid at room temperature and ambient pressure. It requires minimum tooling for a small production or short runs. These properties are ideal in small scale productions for custom foam applications such as custom seating, padding, and cushioning. Generally, lower density grade foams are softer than higher density foams. For firmer foam quality, 8 or 6 pound-per-cubic foot formulas are recommended. The free-rise density of the foam is 4.5 pounds per cubic foot, and the cell structure is designed to be open-cell. This is an MDI base water-blown polyester/polyether hybrid system, and it does not use flammable or ozone-layer-depleting auxiliary blowing agents. Examples for Applications: Molded Upholstery Parts Custom Seating, Padding, and Cushioning Parts Custom Packaging of Impact/Vibration-Sensitive Items Prototyping Information provided by Northstar Polymers.
Physical Properties Metric English Comments
Density 0.0705 g/cc
0.00255 lb/in³
Free Rise Density
0.0785 g/cc
0.00284 lb/in³
Typical Compression Density
Mechanical Properties Metric English Comments
Hardness, Shore OO 30 - 45
30 - 45
Tensile Strength 0.207 MPa
30.0 psi
Elongation at Break 138 %
138 %
Compressive Strength 0.0124 MPa

@Strain 25.0 %
1.80 psi

@Strain 25.0 %
0.0241 MPa

@Strain 50.0 %
3.50 psi

@Strain 50.0 %
Rebound 31 %
31 %
Bashore Rebound
Tear Strength 0.701 kN/m
4.00 pli
Split Tear Resistance
Processing Properties Metric English Comments
Processing Temperature 21.1 - 32.2 °C
70.0 - 90.0 °F
Prepolymer Temperature
21.1 - 32.2 °C
70.0 - 90.0 °F
Curing Agent Temperature
Mold Temperature 37.8 - 54.4 °C
100 - 130 °F
Cure Time 19.8 - 30.0 min

@Temperature 43.3 °C
0.330 - 0.500 hour

@Temperature 110 °F
De-mold Time
60.0 min

@Temperature 82.2 °C
1.00 hour

@Temperature 180 °F
Complete Cure Cycle
1440 min

@Temperature 25.0 °C
24.0 hour

@Temperature 77.0 °F
Complete Cure Cycle
Pot Life 0.170 - 0.250 min
0.170 - 0.250 min
Descriptive Properties Value Comments
Curing Agent PPB-023
Prepolymer MSA-018
Weight Ratio 1:1.27
Prepolymer to Curing Agent Ratio
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