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Elmet Technologies

Covestro Baytec® GS-V85A Polyurethane
Categories: Polymer; Thermoset; Polyurethane, TS

Material Notes: Characterization: Baytec GS-V85A is a two-component, one-shot system that yields a solid polyurethane elastomer.

Properties / Applications: Baytec GS-V85A is a two-component, one-shot system that yields a solid polyurethane elastomer. The isocyanate component is an isocyanate-terminated (MDI) polyester prepolymer, and the polyol component is a polyethylene/polybutylene adipate diol. The Baytec GS-V85A system is used in the production of cast polyurethane elastomers. As with any product, use of the Baytec GS-V85A system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.

Formula 1: Isocyanate: 47.5 pbw; Polyol: 95 pbw; 1,4-Butone Diol: 5 pbw;

Formula 2: Isocyanate: 60 pbw; Polyol: 92.5 pbw; 1,4-Butone Diol: 7.5 pbw;

Formula 3: Isocyanate: 72 pbw; Polyol: 90 pbw; 1,4-Butone Diol: 10 pbw;

Formula 4: Isocyanate: 97 pbw; Polyol: 85 pbw; 1,4-Butone Diol: 15 pbw;

Formula 5: Isocyanate: 121 pbw; Polyol: 80 pbw; 1,4-Butone Diol: 50 pbw;

Information provided by Covestro

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.17 g/cc1.17 g/ccPolyol
 1.20 g/cc1.20 g/ccIsocyanate
Bulk Density 1.17 g/cc0.0422 lb/in³Polyol
 1.20 g/cc0.0433 lb/in³Isocyanate
Viscosity 110 cP110 cPIsocyanate
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 7575Formula 1; ASTM D2240
 8282Formula 2; ASTM D2240
 8888Formula 3; ASTM D2240
 9393Formula 4; ASTM D2240
 9696Formula 5; ASTM D2240
Tensile Strength at Break 29.8 MPa4320 psiFormula 1; ASTM D412
 39.9 MPa5790 psiFormula 2; ASTM D412
 39.9 MPa5790 psiFormula 3; ASTM D412
 43.4 MPa6290 psiFormula 5; ASTM D412
 47.5 MPa6890 psiFormula 4; ASTM D412
Elongation at Break 470 %470 %Formula 3; ASTM D1938
 480 %480 %Formula 4; ASTM D1938
 480 %480 %Formula 2; ASTM D1938
 490 %490 %Formula 5; ASTM D1938
 490 %490 %Formula 1; ASTM D1938
Resilience 4141Bayshore, Formula 4; ASTM D2632
 4242Bayshore, Formula 5; ASTM D2632
 4646Bayshore, Formula 3; ASTM D2632
 5151Bayshore, Formula 2; ASTM D2632
 5555Bayshore, Formula 1; ASTM D2632
Tear Strength 8.41 kN/m48.0 pliSplit, Formula 1; ASTM D1938
 11.9 kN/m68.0 pliSplit, Formula 2; ASTM D1938
 19.8 kN/m113 pliSplit, Formula 3; ASTM D1938
 49.1 kN/m280 pliSplit, Formula 4; ASTM D1938
 56.1 kN/m320 pliDie C, Formula 1; ASTM D624
 56.1 kN/m320 pliDie C, Formula 2; ASTM D624
 64.0 kN/m365 pliSplit, Formula 5; ASTM D1938
 85.9 kN/m490 pliDie C, Formula 3; ASTM D624
 96.4 kN/m550 pliDie C, Formula 4; ASTM D624
 126 kN/m720 pliDie C, Formula 5; ASTM D624
Compression Set  19.4 %
@Temperature 70.0 °C,
Time 79200 sec
19.4 %
@Temperature 158 °F,
Time 22.0 hour
Formula 4; ASTM D395-B
 19.6 %
@Temperature 70.0 °C,
Time 79200 sec
19.6 %
@Temperature 158 °F,
Time 22.0 hour
Formula 3; ASTM D395-B
 19.9 %
@Temperature 70.0 °C,
Time 79200 sec
19.9 %
@Temperature 158 °F,
Time 22.0 hour
Formula 2; ASTM D395-B
 20.9 %
@Temperature 70.0 °C,
Time 79200 sec
20.9 %
@Temperature 158 °F,
Time 22.0 hour
Formula 1; ASTM D395-B
 23.4 %
@Temperature 70.0 °C,
Time 79200 sec
23.4 %
@Temperature 158 °F,
Time 22.0 hour
Formula 5; ASTM D395-B
 
Thermal PropertiesMetricEnglishComments
Flash Point 207 °C405 °FIsocyanate, PMCC
 216 °C421 °FPolyol, PMCC
 
Processing PropertiesMetricEnglishComments
Mold Temperature 110 °C230 °F
 
Descriptive Properties
AppearanceLight yellow liquidPolyol
 Pale yellow liquidIsocyanate
Content18.9%NCO, Isocyanate
Hydroxyl number[mg KOH/g], Polyol

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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PCOVEST0246 / 202029

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