Polytek TekBoard™ MB-8250 Aluminum-Filled Polyurethane Board

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Polytek TekBoard™ MB-8250 Aluminum-Filled Polyurethane Board
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	TekBoard™ Tooling & Modeling Boards are pre-fabricated, highly machinable, dimensionally stable block materials that assist engineers, model makers, mechanical designers, and prototype developers in meeting the demanding needs of the aerospace, automotive, modeling, and prototyping industries. The Polytek® portfolio includes varying densities of urethane, aluminum-filled urethane and epoxy board materials. TekBoard™ MB-8250 is a metal-like, aluminum-filled gray colored urethane board approximately with a ~100 lb/ft3 density. It is dimensionally stable and exhibits excellent machinable properties. MB-8250 tooling board will show a significant savings on billet aluminum tooling materials. Information provided by Polytek
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Physical Properties	Original Value	Comments

Density	100 lb/ft³

Mechanical Properties	Original Value	Comments
Hardness, Shore D	85
Tensile Strength	4046 psi
Flexural Strength	6766 psi
Flexural Modulus	612155 psi

Thermal Properties	Original Value	Comments
CTE, linear	39.2 µin/in-°F
Deflection Temperature at 1.8 MPa (264 psi)	175 °F

Descriptive Properties
Color	Gray/Aluminum
Impact Strength (IZOD)	notched

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PPTK5103 / 251095

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