GEHR Plastics PE-UHMW-ELS Polyethylene

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GEHR Plastics PE-UHMW-ELS Polyethylene
Categories:	Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); UHMW PE (Ultra High Molecular Weight PE)
Material Notes:	Polyethylene offers resistance to almost all acids and bases, detergents and hot water. PE has good insulation properties and is easy to weld. The operating temperature of HDPE is from -58 °F to +194 °F. Main Characteristics: light weight; high chemical resistance; high toughness (also at low temperature); good protection against stress cracking; high elongation; food safe; very good electrical and dielectric properties; soft surface (low tensile strength); HF welding not recommended; very low water absorption • difficult to varnish and glue; low steam permeability; not weather resistant Information provided by GEHR Plastics, Inc.
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Physical Properties	Metric	English	Comments

Specific Gravity	0.940 g/cc	0.940 g/cc	ISO 1183

Mechanical Properties	Metric	English	Comments
Ball Indentation Hardness	38.0 MPa	5510 psi	ISO 2039-1
Tensile Strength at Break	30.0 MPa	4350 psi	ISO 527
Tensile Strength, Yield	17.0 MPa	2470 psi	ISO 527
Elongation at Break	>= 50 %	>= 50 %	ISO 527
Elongation at Yield	8.0 %	8.0 %	ISO 527
Modulus of Elasticity	0.800 GPa	116 ksi	ISO 527
Charpy Impact Unnotched	NB	NB	ISO 179

Electrical Properties	Metric	English	Comments
Volume Resistivity	<= 1.00e+6 ohm-cm	<= 1.00e+6 ohm-cm	VDE 0303
Surface Resistance	<= 1.00e+6 ohm	<= 1.00e+6 ohm	VDE 0303

Thermal Properties	Metric	English	Comments
CTE, linear	200 µm/m-°C	111 µin/in-°F	DIN 53752
Thermal Conductivity	0.400 W/m-K @Temperature 20.0 °C	2.78 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Maximum Service Temperature, Air	90.0 °C	194 °F
Vicat Softening Point	76.0 °C	169 °F	VST/B/50; ISO 306
Minimum Service Temperature, Air	-150 °C	-238 °F
Flammability, UL94	HB	HB	UL 94

Descriptive Properties
Acid Resistance	Yes
Aromatic Resistance	Limited
CKW Resistance	No
Hydrocarbonate Resistance	Yes
Hydroxide Resistance	Yes
Ketone Resistance	Yes
Resistance to Hot Water	No
UV Stabilization	fair

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PGEHR051 / 122034

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