Gail HDPE G-Lex E52U003
Gail HDPE G-Lex E52U003 (also referenced alongside E52U003N) is a UV-stabilized high-density polyethylene (HDPE) resin engineered for telecom-duct extrusion—specifically PLB (permanently lubricated) HDPE ducts and DWC (double-walled corrugated) HDPE ducts used as underground optical fiber cable (OFC) conduits.
Positioned as a duct-grade material (not a pressure-pipe grade), E52U003 is designed for the performance priorities that matter in telecom infrastructure: consistent extrusion behavior, duct stiffness and impact robustness during handling/installation, and long-term resistance to oxidative/thermal aging. GAIL describes the resin family as HDPE with a bimodal molecular weight distribution produced via its G-Lex slurry-process technology, supporting a balance of mechanical strength, stiffness, processability, and ESCR (environmental stress crack resistance).
For buyers and engineers evaluating duct compounds, E52U003 is typically selected when UV stabilization and compliance-aligned duct performance are required for outdoor storage/handling and long-life underground service. Manufacturer documentation also positions the grade as conforming to DoT/TEC generic requirements for the relevant telecom duct applications.
Technical insights
Key datasheet properties (typical values)
- Melt Flow Index (I5): 0.95 g/10 minIndicates a flow level suited to extrusion of duct profiles where stable melt strength and output consistency are critical.
- Density @ 23 °C: 0.954 g/ccA high-density level associated with higher stiffness and dimensional stability—important for duct ring stiffness and installation durability.
- Tensile Strength @ Yield: 240 kg/cm²A practical indicator of resistance to deformation under load during pulling, bending, and installation handling.
- Elongation @ Yield: 10%Reflects controlled duct stiffness at the onset of yielding—useful for maintaining shape under installation stresses.
- Elongation @ Break: >600%Signals toughness and duct survivability under impact or sudden strain events.
- Thermal Stability (OIT): >45 minutesSupports oxidative stability expectations for long-life telecom infrastructure and improved resistance to thermal aging.
- Heat Deflection Temperature (45 g/mm²): 67 °CHelps indicate shape retention under elevated temperatures that may occur during storage, transport, or installation environments.
- Vicat Softening Point: 123 °C Provides a reference for softening behavior at higher temperatures relevant to processing and end-use exposure.
Applications
PLB HDPE telecom ducts for underground OFC conduits: E52U003 is recommended for permanently lubricated (PLB) HDPE telecom ducts where low-friction cable pulling, dimensional stability, and long-term reliability are required for underground optical fiber cable protection.
DWC (double-walled corrugated) HDPE ducts: The grade is also positioned for double-walled corrugated duct systems used in telecom and utility conduit networks, where stiffness-to-toughness balance and robust handling performance support installation success.
Telecom duct extrusion lines requiring UV-stabilized handling stability: For duct manufacturers and converters, UV stabilization is a key selection driver when pellets, compounds, or finished ducts may see outdoor exposure during storage, yard handling, or staged installation.
Comparable alternatives
Comparable telecom-duct HDPE grades exist across Indian petrochemical suppliers and duct-compounding channels, but direct equivalence to G-Lex E52U003 should not be assumed without matching manufacturer TDS data and compliance requirements.
Within GAIL’s own positioning, E52U003 and E52U003N are paired in the same manufacturer document; however, a strict “drop-in equivalent” claim between the two variants is not confirmed here beyond the paired listing. When comparing alternatives, buyers typically benchmark:
- Flow vs. stiffness balance: MFI (I5) near 0.95 g/10 min and density around 0.954 g/cc for duct extrusion behavior.
- Toughness indicators: elongation at break and impact robustness for installation survivability.
- Stabilization package: OIT and UV stabilization expectations for long-life duct service.
- Standards alignment: DoT/TEC generic requirements referenced by the manufacturer for the intended PLB/DWC duct application.
E52U003 is positioned as a purpose-built, manufacturer-documented UV-stabilized duct grade—best suited when your RFQ requires telecom-duct positioning, typical-property alignment, and documentation-backed compliance claims.
Common search variants
Also searched as: HDPE telecom duct granules, OFC duct HDPE, PLB duct resin, DWC duct resin, HDPE dana for telecom ducts.
Common misspellings/variants: G Lex E52U003, GAIL E52U003, E52U003 HDPE, E52U003 0.95 MFI.
Key Features
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FAQs
Frequently Asked Questions
What is GAIL G-Lex E52U003 used for?
Is E52U003 suitable for PLB and DWC telecom ducts?
What do the MFI and density indicate for duct extrusion?
What does OIT tell me about this grade?
How does E52U003 compare with general-purpose HDPE grades?
Can I treat E52U003 and E52U003N as direct equivalents?
What processing guidance should I follow for extrusion?
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