Highly Cross-Linked Polyethylene (XLPE)

Verifiedpolymer
· XLPE· Cross-linked UHMWPE· Marathon PE· Longevity PE

Highly cross-linked polyethylene (XLPE) is a thermosetting polymer created by chemically linking polyethylene chains to form a three-dimensional network structure, dramatically improving its thermal stability, chemical resistance, and mechanical performance compared to conventional linear polyethylene. The material is widely used in cable insulation for high-voltage power transmission, medical tubing and device components, and industrial piping systems where superior heat resistance and creep resistance are essential. Engineers select XLPE over standard polyethylene when applications demand sustained performance at elevated temperatures, resistance to permeation, or long-term durability in demanding chemical or thermal environments without sacrificing impact tolerance.

high-voltage cable insulationcross-linked piping and tubingmedical device componentsthermal barrier applicationschemical-resistant containersnuclear and industrial radiation shielding

Compliance & Regulations

?UL 94?Conflict Free?FDA?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Elongation at Break(εf)
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-——
Fracture Toughness(KIC)
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ksi·√in——
Ultimate Tensile Strength(σUTS)
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ksi——
Yield Strength (0.2% offset)(σy)
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ksi——
Young's Modulus(E)
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ksi——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
—
lb/in³——
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Safety & Biocompatibility

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.
Highly Cross-Linked Polyethylene (XLPE) — Properties & Data | MatWorld