UHMWPE (Ultra-High-Molecular-Weight Polyethylene) is a tough thermoplastic polymer with extremely long molecular chains (typically 2 to 6 million daltons). Because of these long chains, the material transfers loads effectively, giving it the highest impact strength of any thermoplastic currently made.
Key Properties
Extreme Abrasion & Wear Resistance: Outperforms many engineered plastics and metals in high-friction or sliding environments.
Low Friction & Self-Lubricating: Features a very slippery surface close to PTFE (Teflon), allowing parts to slide smoothly without external grease.
Chemical & Corrosion Resistance: Resists acids, bases, and most corrosive chemicals (with limited resistance to certain aromatic or halogenated hydrocarbons).
Low Moisture Absorption: Does not absorb water or swell, making it ideal for wet or submerged environments.
Non-Toxic & Odorless: Safe for food and pharmaceutical contact (often FDA and USDA compliant).