Covestro Baydur® PUL 4501 Liquid Polyurethane

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Covestro Baydur® PUL 4501 Liquid Polyurethane
Categories:	Fluid
Material Notes:	Characterization: Baydur PUL 4501 is a two-component liquid polyurethane system for use in composite manufacturing. Properties / Applications: Baydur PUL 4501 is a two-component liquid polyurethane system for use in composite manufacturing. The isocyanate is a modified diphenylmethane diisocyanate (MDI), and the polyol component is a polyether polyol blend. The system has been specially designed for use in pultrusion and gives excellent composite properties, including superior elongation to failure, shear strength and impact resistance. As with any product, use of the Baydur PUL 4501 system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability. Information provided by Covestro
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Physical Properties	Original Value	Comments

Specific Gravity	1.05 g/cc	Polyol (Component B)
	1.24 g/cc	Isocyanate (Component A)
	1.80 g/cc	M-R-M; ASTM D792
	2.10 g/cc	Roving; ASTM D792
Viscosity	60 cP	Isocyanate (Component A)
	800 cP	Polyol (Component B)

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	7000 psi	Roving, transverse; ASTM D683
	11500 psi	M-R-M, transverse; ASTM D683
	118000 psi	M-R-M, parallel; ASTM D683
	180000 psi	Roving, parallel; ASTM D683
Elongation at Break	1.5 %	M-R-M
	2.5 %	Roving
Flexural Strength	105 MPa	Roving, transverse; ASTM D790
	228 MPa	M-R-M, transverse; ASTM D790
	758 MPa	M-R-M, parallel; ASTM D790
	1460 MPa	Roving, parallel; ASTM D790
Shear Strength	>= 0.0152 ksi	Short beam, Roving, transverse; ASTM D2344
	>= 0.0331 ksi	Short beam, M-R-M, transverse; ASTM D2344
	>= 0.0483 ksi	Short beam, M-R-M, parallel; ASTM D2344
	>= 0.0627 ksi	Short beam, Roving, parallel; ASTM D2344

Thermal Properties	Original Value	Comments
Glass Transition Temp, Tg	120 °C	Roving
	120 °C	M-R-M

Processing Properties	Original Value	Comments
Gel Time	14.0 min

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 go back to viewing the property data in MatWeb's normal format.

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PCOVEST0100 / 201883

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