Northstar Polymers MSS-A85BQ High Performance Polyurethane Cast Elastomer System 85A

Manufacturer Northstar Polymers
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union

Description

Material Notes:
This is a Ester/MDI base high-performance polyurethane casting system. This systems is recommended to applications in which the part requires high tensile strength, cut/tear resistance, dry-abrasion resistance, slow response speed, and low energy rebound/response. Ester base systems are generally less expensive than PTMEG base material. Possible applications for this material include skirting for conveyer belts, abrasion resistance liners and parts, and other specialty parts. 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 85

85

ASTM D2240
Tensile Strength 42.7 MPa

6200 psi

ASTM D412
Elongation at Break 800 %

800 %

ASTM D412
100% Modulus 0.008515 GPa

1.235 ksi

ASTM D412
300% Modulus 0.0201 GPa

2.91 ksi

ASTM D412
Rebound 38 %

38 %

Bashore Rebound; ASTM D2632
Tear Strength 83.3 kN/m

475 pli

Split; ASTM D624
126 kN/m

720 pli

Die C; ASTM D624
Taber Abrasion, mg/1000 Cycles 30

30

ASTM D4060

 

Processing Properties Metric English Comments
Processing Temperature 21.1 °C

70.0 °F

Prepolymer Temperature
82.2 °C

180 °F

Curing Agent Temperature
Mold Temperature 82.2 °C

180 °F

Cure Time 30.0 – 40.2 min

@Temperature 82.2 °C
0.500 – 0.670 hour

@Temperature 180 °F
De-mold Time
960 – 1440 min

@Temperature 82.2 °C
16.0 – 24.0 hour

@Temperature 180 °F
Complete Cure Cycle
Pot Life 2.50 – 3.00 min

2.50 – 3.00 min

Gel Time 4.00 min

4.00 min

 

Descriptive Properties Value Comments
Curing Agent SBA-030

Prepolymer MSA-018

Weight Ratio 1:1.636

Prepolymer to Curing Agent Ratio