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Rulon Bearings

Covestro Bayflex® 952 Polyether-based Polyurethane System, Density 34 pcf
Categories: Polymer; Thermoset; Polyurethane, TS

Material Notes: Characterization: Bayflex 952 is a fully compounded polyether-based polyurethane system consisting of two liquid components which can be water-blown.

Properties / Applications: Bayflex 952 is a fully compounded polyether-based polyurethane system consisting of two liquid components which can be water-blown. Component A is a modified diphenylmethane diisocyanate (MDI) prepolymer, and Component B is a polyether polyol system. The Bayflex 952 system is used in the manufacture of microcellular polyurethane shoe soles. Soles prepared from these components combine light weight, comfort, and durability. Processibility and dynamic flexural properties are excellent over a wide range of densities. The combination of excellent physical properties and ease of processing has made the Bayflex 952 system a prime soling material for single-density soles for fashion and casual shoes. As with any product, use of the Bayflex 952 system in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability.

Information provided by Covestro

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Physical PropertiesMetricEnglishComments
Specific Gravity 0.500 g/cc0.500 g/ccMolded
 1.05 g/cc1.05 g/ccPolyol (Component B)
 1.20 g/cc1.20 g/ccIsocyanate (Component A)
Viscosity 1100 cP1100 cPIsocyanate (Component A)
 1100 cP1100 cPPolyol (Component B)
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 5050ASTM D2240
Tensile Strength at Break 3.10 MPa450 psiASTM D412
Elongation at Break 400 %400 %ASTM D412
Tear Strength 4.38 kN/m25.0 pliBlack
 14.0 kN/m80.0 pliDie C; ASTM D1004
Taber Abrasion, mg/1000 Cycles 70
@Load 1.00 kg
70
@Load 2.20 lb
H-18; ASTM D4060
 
Thermal PropertiesMetricEnglishComments
Flash Point 138 °C280 °FPolyol (Component B)
 207 °C405 °FIsocyanate (Component A)
 
Processing PropertiesMetricEnglishComments
Mold Temperature 49.0 °C120 °F
Moisture Content <= 0.38 %<= 0.38 %Polyol (Component B)
 
Descriptive Properties
AppearanceLight yellow viscous liquidIsocyanate (Component A)
 White liquidPolyol (Component B)
Content18.7-19.1%NCO, Isocyanate (Component A)
Hydroxyl numberPolyol (Component B)

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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PCOVEST0128 / 201911

Aluminum Castings

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