Covestro Bayflex® 906 Polyether-based Polyurethane System, Density 29 pcf

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Covestro Bayflex® 906 Polyether-based Polyurethane System, Density 29 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	Original Value	Comments

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

Mechanical Properties	Original Value	Comments
Hardness, Shore A	66	ASTM D2240
Tensile Strength at Break	3.48 MPa	ASTM D412
Elongation at Break	146 %	ASTM D412
Tear Strength	90.0 pli	Die C; ASTM D624

Thermal Properties	Original Value	Comments
Flash Point	121 °C	Polyol (Component B)
	213 °C	Isocyanate (Component A)

Processing Properties	Original Value	Comments
Mold Temperature	55.0 - 65.0 °C
Moisture Content	<= 0.60 %	Polyol (Component B)

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

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PCOVEST0126 / 201909

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