Donnelly Bros HT 500 High Temperature Mold Grease

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Donnelly Bros HT 500 High Temperature Mold Grease
Categories:	Fluid; Lubricant; Perfluoropolyether (PFPE); PTFE Gellant
Material Notes:	White. Slight odor. Use caution when handling. Light caramel-like texture. Does not migrate, works well in constant metal temperature of 250° F to 500° F. (Note: The plastic molding material itself might be much higher temperature.) A stiff, PTFE thickened, medium viscosity, completely fluorinated grease possessing very wide temperature capability, excellent plastic and elastomer compatibility and resistance to aggressive chemicals. Information provided by Donnelly Bros. Inc.
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Physical Properties	Original Value	Comments

Density	1.88 g/cc	ASTM D1480
Viscosity	1.70e+6 cP
Viscosity Measurement	136	Viscosity Index; ASTM D2270
Kinematic Viscosity at 40°C (104°F)	345 cSt	ASTM D445
Kinematic Viscosity at 100°C (212°F)	33 cSt	ASTM D445
Evaporation Loss	0.30 %	150°C; 22 hrs

Mechanical Properties	Original Value	Comments
Penetration P(0), 1/10 mm	230	ASTM D217
Penetration P(60), 1/10 mm	239	ASTM D217
Oil Separation	3.0 %	150°C; 22 hrs; FTM 791B, 321.2

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	500 °F
Minimum Service Temperature, Air	-20.0 °C
Pour Point	-25.0 °C	UniFlor 8610 Base Oil; ASTM D97

Descriptive Properties
Appearance	Smooth
Base Oil	UniFlor 8610
Color	White
NLGI Grade	3	ASTM D217

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