PE-HD vs PTFE (Teflon): 0% composition overlap. Significantly different materials serving different application areas.
PE-HD vs PTFE (Teflon)
Side-by-side chemical composition and mechanical property comparison.
Overview
PE-HD
High Density Polyethylene — the highest-volume plastic globally (>30M tons/year). Linear chains with minimal branching give higher density and strength vs LDPE. Excellent chemical resistance, FDA/food-safe, very low moisture absorption, and good impact resistance down to -30°C. Used for pipes, bottles, containers, fuel tanks, cutting boards, playground equipment, and geomembranes.
PTFE (Teflon)
Polytetrafluoroethylene — the most chemically resistant polymer. Lowest friction coefficient of any solid material (~0.05-0.10). Service range -240°C to +260°C continuous. Cannot be melt-processed — must be sintered from powder (like ceramics). Very low mechanical strength. Trade name Teflon (Chemours/DuPont). Used for seals, gaskets, bearings, non-stick coatings, chemical reactor linings, electrical insulation, and lab equipment.
| PE-HD | PTFE (Teflon) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 1872 | ISO 12086 |
Chemical composition (wt%) — Pro
| Element | PE-HD | PTFE (Teflon) | Overlap |
|---|---|---|---|
| Base Polymer (Polyethylene) | 99.5–99.9% | — | — |
| Base Polymer (Polytetrafluoroethylene) | — | 99.5–99.9% | — |
Mechanical properties — Pro
| Property | PE-HD | PTFE (Teflon) | Unit |
|---|---|---|---|
| Tensile Strength | 25–38 | 20–35 | MPa |
| Yield Strength | 22–30 | — | MPa |
| Elongation | 100–1000 | 200–400 | % |
| Elastic Modulus | |||
| Density | |||
| Melting Point | |||
| Glass Transition Temp (Tg) | |||
| Water Absorption (24h) | |||
| Continuous Use Temp | |||
| friction_coefficient | |||
| Tensile Strength | |||
| Tensile Modulus | |||
| Elongation at Break | |||
| Density | |||
| Melting Point | |||
| Continuous Use Temp | |||
| Coefficient of Friction | |||
| Dielectric Constant (1MHz) | |||
| Water Absorption (24h) |
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PE-HD and PTFE (Teflon) have significantly different compositions (0% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is PE-HD the same as PTFE (Teflon)?
PE-HD and PTFE (Teflon) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace PE-HD with PTFE (Teflon)?
Generally not recommended. The compositions differ significantly (0% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between PE-HD and PTFE (Teflon)?
The main differences are in the following elements: overall alloying content. PE-HD is a Polymers grade, while PTFE (Teflon) is a Polymers grade.
Related Comparisons
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Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.