Covestro Bayflex® 906 Polyether-based Polyurethane System, Density 34 pcf

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Covestro Bayflex® 906 Polyether-based Polyurethane System, Density 34 pcf
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Characterization: Bayflex 906 is a fully compounded, water-blown, polyether-based polyurethane system consisting of two liquid components. Properties / Applications: Bayflex 906 is a fully compounded, water-blown, polyether-based polyurethane system consisting of two liquid components. Component A is a modified diphenylmethane diisocyanate (MDI) prepolymer, and Component B is a polyether polyol system. Bayflex 906 system was developed for use in a wide variety of applications requiring a microcellular core and a tough, abrasion-resistant outer surface. Examples of possible applications include appliance handles, office chair armrests, and dunnage strips. As with any product, use of the Bayflex 906 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 Properties	Metric	English	Comments

Specific Gravity	1.02 g/cc	1.02 g/cc	Polyol (Component B)
	1.21 g/cc	1.21 g/cc	Isocyanate (Component A)
Viscosity	800 cP	800 cP	Isocyanate (Component A)
	1100 cP	1100 cP	Polyol (Component B)

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	75	75	ASTM D2240
Tensile Strength at Break	5.65 MPa	819 psi	ASTM D412
Elongation at Break	199 %	199 %	ASTM D412
Tear Strength	27.5 kN/m	157 pli	Die C; ASTM D624

Thermal Properties	Metric	English	Comments
Flash Point	121 °C	250 °F	Polyol (Component B)
	213 °C	415 °F	Isocyanate (Component A)

Processing Properties	Metric	English	Comments
Mold Temperature	55.0 - 65.0 °C	131 - 149 °F
Moisture Content	<= 0.60 %	<= 0.60 %	Polyol (Component B)

Descriptive Properties
Content	22.6-23.1%		NCO, Isocyanate (Component A)
Hydroxyl number	[mg KOH/g], Polyol (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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PCOVEST0127 / 201910

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