PE-LD (Low-Density Polyethylene) vs PTFE (Teflon): 0% composition overlap. Significantly different materials serving different application areas.
PE-LD (Low-Density Polyethylene) vs PTFE (Teflon)
Side-by-side chemical composition and mechanical property comparison.
Overview
PE-LD (Low-Density Polyethylene)
Low-density polyethylene — branched chain structure gives flexibility, transparency, and easy processing. THE film/packaging polymer: cling wrap, carrier bags, squeeze bottles, shrink wrap. Also used for cable insulation, agricultural film, and coatings. Lower density (0.91-0.93) and strength than PE-HD but much more flexible.
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-LD (Low-Density Polyethylene) | PTFE (Teflon) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 1872 | ISO 12086 |
Chemical composition (wt%) — Pro
| Element | PE-LD (Low-Density Polyethylene) | PTFE (Teflon) | Overlap |
|---|---|---|---|
| Base Polymer (Polyethylene) | 99.5–99.9% | — | — |
| Base Polymer (Polytetrafluoroethylene) | — | 99.5–99.9% | — |
Mechanical properties — Pro
| Property | PE-LD (Low-Density Polyethylene) | PTFE (Teflon) | Unit |
|---|---|---|---|
| Tensile Strength | 8–16 | 20–35 | MPa |
| Elongation | 200–600 | 200–400 | % |
| Elastic Modulus | 150–350 | 0.4–0.55 | MPa |
| Density | |||
| Melting Point | |||
| Continuous Use Temp | |||
| friction_coefficient | |||
| Water Absorption (24h) | |||
| Tensile Strength | |||
| Tensile Modulus | |||
| Elongation at Break | |||
| Density | |||
| Melting Point | |||
| Continuous Use Temp | |||
| Coefficient of Friction | |||
| Dielectric Constant (1MHz) | |||
| Water Absorption (24h) |
Sign up free and get 3 full comparisons immediately.
Sign up free — 3 comparisons/day freeCompatibility Assessment
PE-LD (Low-Density Polyethylene) 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-LD (Low-Density Polyethylene) the same as PTFE (Teflon)?
PE-LD (Low-Density Polyethylene) and PTFE (Teflon) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace PE-LD (Low-Density Polyethylene) 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-LD (Low-Density Polyethylene) and PTFE (Teflon)?
The main differences are in the following elements: overall alloying content. PE-LD (Low-Density Polyethylene) is a Polymers grade, while PTFE (Teflon) is a Polymers grade.
Related Comparisons
View full data for each material:
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.