Wefapress St 9100 oil Self-Lubricating PE-UHMW

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Wefapress St 9100 oil Self-Lubricating PE-UHMW
Categories:	Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); UHMW PE (Ultra High Molecular Weight PE)
Material Notes:	St 9100 oil is an enhancement of the ultra-high molecular weight low pressure polyethylene (PE-UHMW) type US 9200®. The molecular weight is around 9.2 million g/mol. The use of the finest lubricants further improves the sliding and abrasion properties. This development is a cost efficient alternative that even surpasses the results of US 9200®. Properties: FDA-approved, Good sliding properties, High wear resistance, Zero moisture absorption, Self-lubricating. Applications: Guide rails, Sliding components with high wear resistance, Sliding profiles, slide bearings, slide rails. Industries: Conveyor systems and automation, Drinks and bottling industries, Mechanical and plant engineering, Food industry. Information provided by Wefapress.
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Physical Properties	Original Value	Comments

Density	0.956 g/cc	DIN 53479
Moisture Absorption	<= 0.0100 %
Molecular Weight	9.20e+6 g/mol

Mechanical Properties	Original Value	Comments
Hardness, Shore D	60 - 65 @Time 15.0 sec	DIN 53505
Ball Indentation Hardness	35.0 MPa @Time 30.0 sec	DIN ISO 2039 Teil 1
Tensile Strength	22.0 MPa	DIN 53455
Tensile Strength, Ultimate	41.0 MPa	DIN 53455
Elongation at Break	>= 200 %	DIN ISO / R 527
Modulus of Elasticity	0.700 GPa	DIN 53457
Charpy Impact, Notched	>= 80.0 kJ/m²	DIN 53457
Coefficient of Friction	0.080
Sand Slurry	80	% Abrasion

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+15 ohm-cm	IEC 60093
Surface Resistance	1.00e+13 ohm	IEC 60093
Dielectric Strength	45.0 kV/mm	IEC 60243

Thermal Properties	Original Value	Comments
CTE, linear	200 µm/m-°C	DIN ISO 11359
Specific Heat Capacity	1.80 J/g-°C
Thermal Conductivity	0.400 W/m-K
Melting Point	135 - 138 °C	DTA
Maximum Service Temperature, Air	47.0 °C	Dimensional Stability; DIN 53461
	80.0 °C	Continuous Application Temp.
Vicat Softening Point	80.0 °C	DIN 53460
Minimum Service Temperature, Air	-200 °C
Flammability, UL94	HB

Compliance Properties	Original Value	Comments
FDA	Yes

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