Daikin DEMNUM™ S-65 Perfluoropolyether oil

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Daikin DEMNUM™ S-65 Perfluoropolyether oil
Categories:	Fluid; Lubricant; Perfluoropolyether (PFPE)
Material Notes:	DEMNUM™ is a perfluoropolyether oil that has a straight-chain structure developed using DAIKIN’s original technology. It has excellent thermal and chemical stability and inertness, and is suitable as a lubricant grease especially when durability and cleanliness are required. DEMNUM GREASE is a grease formed with DEMNUM as the base oil, chemically inert with excellent high-thermal stability and solvent resistance. Information provided by Daikin.
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Physical Properties	Original Value	Comments

Specific Gravity	1.873 g/cc
Viscosity Measurement	180	Index
Kinematic Viscosity	33 cSt @Temperature 60.0 °C
	150 cSt @Temperature 20.0 °C
Kinematic Viscosity at 40°C (104°F)	65 cSt @Temperature 40.0 °C
Kinematic Viscosity at 100°C (212°F)	15 cSt @Temperature 100 °C
Molecular Weight	4500 g/mol
Vapor Pressure	3.00e-10 bar @Temperature 20.0 °C
	3.00e-7 bar @Temperature 100 °C
Surface Tension	18 dynes/cm

Electrical Properties	Original Value	Comments
Dielectric Breakdown	72000 V @Thickness 2.50 mm

Thermal Properties	Original Value	Comments
Specific Heat Capacity	1.00 J/g-°C
Pour Point	-65.0 °C
Glass Transition Temp, Tg	-111 °C

Optical Properties	Original Value	Comments
Refractive Index	1.295	n_D

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PDAIJ9939 / 210010

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