Lubrizol Pearlstick™ 5778 Thermoplastic Polyurethane

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Lubrizol Pearlstick™ 5778 Thermoplastic Polyurethane
Categories:	Polymer; Thermoplastic; Polyurethane, TP
Material Notes:	Type: Pearlstick™ 5778 TPU is a Polyester-Type Thermoplastic Polyurethane (TPU). Features: It is especially well suited for dispersing co-ferrite as well as Cr02 pigments used in video, audio, and data storage applications. This product offers excellent hydrolytic stability under accelerated test conditions as well as outstanding pigment dispersion characteristics. Because of its medium Tg, it offers excellent adhesion and easier calendaring for high quality video and audio formulations. An excellent video tape can be formulated by blending with other harder dispersing resins. It is also used for dispersing high-surface–area pigments as a polymeric dispersant. Uses: Tape binder, inks, lacquers and polymeric dispersing polymer for pigment dispersion Information provided by The 159 Corporation
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Physical Properties	Original Value	Comments

Specific Gravity	1.21 g/cc	ASTM D792
Brookfield Viscosity	60 - 70 cP	15% T.S. in MEK, RVT Spindle #2, 20 RPM, 23°C
	70 - 80 cP	15% T.S. in THF, RVT Spindle #2, 20 RPM, 23°C
	180 - 200 cP	15% T.S. in Cyclohexanone, RVT Spindle #2, 20 RPM, 23°C

Mechanical Properties	Original Value	Comments
Hardness, Shore D	78
Tensile Strength	34.5 MPa	ASTM D-412/D-638
Elongation at Break	250 %	ASTM D-412/D-638
100% Modulus	17.9 MPa @Strain 100 %	ASTM D-412/D-638
Peel Strength	0.100 kN/m	T-peel, Mylar film, Cast in MEK; ASTM D-1876-72

Thermal Properties	Original Value	Comments
Vicat Softening Point	38.0 °C	ASTM D-1525
Glass Transition Temp, Tg	31.0 °C

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PLUBR5015 / 238885

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