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Additive Free Polymer LDPE Disk

Available Configurations

Properties common to all products in this list

Grade: Low Density Polyethylene (LDPE) Composition: LDPE Form: Disk Material: Polyethylene (PE) CAS Number: 9002-88-4 Commodity: Polymers Structure: Biaxially Oriented
Additive Free Polymer LDPE Disk is a pure low-density polyethylene material characterized by high flexibility, chemical inertness, and low moisture permeability, achieved without the use of stabilizers, pigments, or plasticizers. The absence of additives ensures minimal extractables, making it highly suited for sensitive applications requiring uncompromised material purity. Packaging, biomedical, and electrical industries employ such disks for barrier layers, sterile sealing interfaces, and electrically insulating components. Specific uses include chemically inert sample holders for spectroscopy, low-contamination barriers in biomedical devices, and precision insulating spacers in electronic assemblies. In research and innovation, additive-free LDPE disks are vital for studying polymer surface modifications, developing active packaging solutions, and engineering composite systems without interference from additive chemistry. The material’s combination of mechanical flexibility, purity, and stability under a wide range of environmental conditions reinforces its significance across scientific and industrial applications.
Starting at $153.00 each
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Material Properties

Chemical Resistance
Element Value
Acids - concentrated Good-Fair
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Fair-Poor
Greases and Oils Good-Fair
Halogenated Hydrocarbons Fair-Poor
Halogens Fair-Poor
Ketones Good-Fair
Electrical Properties
Element Value
Dielectric constant @1MHz 2.2-2.35
Dissipation factor @ 1MHz 1-10x 10⁻⁴
Dielectric strength( kV mm⁻¹ ) 27
Surface resistivity( Ohm/sq ) 10¹³
Volume resistivity( Ohmcm ) 10¹⁵-10¹⁸
Physical Properties
Element Value
Flammability HB
Radiation resistance Fair
Refractive index 1.51
Resistance to Ultra-violet Poor
Limiting oxygen index( % ) 17
Water absorption - over 24 hours( % ) 0.015
Density( gcm⁻³ ) 0.92
Mechanical Properties
Element Value
Hardness - Rockwell D41-46 - Shore
Elongation at break( % ) 400
Tensile modulus( GPa ) 0.1-0.3
Izod impact strength( J m⁻¹ ) 1000
Tensile strength( MPa ) May-25
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 50
Heat-deflection temperature - 1.8MPa( C ) 35
Lower working temperature( C ) -60
Upper working temperature( C ) 50-90
Specific heat( J K⁻¹ kg⁻¹ ) 1900-2300
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.33@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 100-200
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Available Configurations

Properties common to all products in this list

Grade: Low Density Polyethylene (LDPE) Composition: LDPE Form: Disc Material: Polyethylene (PE) CAS Number: 9002-88-4 Commodity: Polymers Structure: Biaxially Oriented

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Tolerances

Disc
Thickness ±20%
Diameter ±0.5mm