UHMWPE ( uhmwpe sheet or rod ) is an ultra-tough, wear-resistant polyethylene designed for high-performance applications where impact strength, abrasion resistance, and low friction are critical. Sold in flat sheet and rod stock, it's often the go-to choice for wear strips, guide rails, and liner systems.
Key Properties
- Density: ~0.935 g/cm³
- Working Temperature: -150°C to +80°C
- Tensile Strength: ~3,100 psi
- Impact Strength: Outstanding (non-notched Izod >200 ft-lbs/in)
- Coefficient of Friction: Ultra-low (~0.1)
- Moisture Absorption: Near zero
- Chemical Resistance: Excellent across acids, solvents, detergents
Common Application
- Wear pads, slides, and chain guides
- Conveyor components and chute liners
- Marine dock bumpers and fenders
- Hopper and truck bed liners
- High-impact spacers and bushings
Benefits
- Virtually unbreakable under impact loads
- Outlasts many other plastics in sliding or abrasive conditions
- Very low surface friction — ideal for moving parts
- Self-lubricating — no external lubrication needed
- Vibration-dampening and noise-reducing