Engineering Plastic

UHMWPE Ultra High Molecular Weight Polyethylene

Wear · Load · Precision machining

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±0.1mm

Precision Tolerance

35+ Years

On The Gold Coast

Full Range

Perspex, HDPE & More

Australia-Wide

Fast Delivery

Trade Names: Polystone. UHMWPE is a very rigid material for use in general plant engineering where the unique properties, excellent impact strength, wear and abrasion resistance are required.

UHMWPE's molecular weight is 10–100 times greater than HDPE, giving it extraordinary abrasion resistance — it outperforms steel in many wear applications. Its extremely low coefficient of friction and self-lubricating properties make it ideal for conveyor systems, chute liners, and any application where material needs to slide.

⚙Technical Specifications

Material Type

UHMWPE (Ultra High Molecular Weight Polyethylene)

Specific Gravity

0.93

Tensile Strength

~40 MPa

Impact Strength

Excellent — no break

Continuous Service Temp

−269°C to 80°C

Water Absorption

0.01%

Coefficient of Friction

Extremely low

Abrasion Resistance

Excellent — superior to HDPE

Chemical Resistance

Excellent

Electrical Insulation

Very Good

FDA Approved

Yes (natural grade)

Quick Facts

✓ Over 35 years experience
✓ No minimum order
✓ Fast turnaround
✓ Australia-wide delivery

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Applications

Flow promoting liners for silos, bunkers, and chutes

Conveyor components — guides, wear strips, chain pads

Mining — truck tray liners, screen panels

Food processing — cutting boards, guides, FDA components

Marine — dock fenders, pile guards

Parts subject to high impact stresses

Available Sizes

Form	Sizes	Colours
Sheet	3, 6, 10, 12, 15, 20, 25, 30, 40, 50mm — 3000 x 1500mm or 2000 x 1000mm	White, Black
Rod	20–300mm diameter	White, Black

Fabrication & Processing

UHMWPE machines well but its extreme toughness means it produces long, stringy chips. Use sharp tools with high positive rake angles and moderate speeds. UHMWPE cannot be solvent bonded or welded easily — mechanical fastening with countersunk bolts is the standard installation method.

CNC routing — excellent for chute liners and wear plates

Drilling — use standard HSS bits with slow feed

Countersinking — essential for flush-mount wear liner installations

Joining — mechanical fasteners only (bolts with countersunk heads)

Note: UHMWPE cannot be glued, welded, or solvent bonded

UHMWPE vs HDPE

Property	UHMWPE	HDPE
Abrasion Resistance	Superior	Good
Impact Strength	Excellent (no break)	Good
Coefficient of Friction	Lower	Low
Max Service Temp	80°C	100°C
Weldability	Poor	Good
Cost	$$	$

Frequently Asked Questions

How long do UHMWPE wear liners last?+

In typical mining and bulk handling applications, UHMWPE liners last 3–10 times longer than mild steel liners. Actual life depends on the abrasive material, impact loading, and operating temperature. Many installations achieve 5+ years of continuous service.

Can UHMWPE be used in food processing?+

Yes — natural (white) UHMWPE is FDA approved for direct food contact. It is widely used for cutting boards, conveyor guides, and processing surfaces. Its non-porous surface prevents bacterial growth and is easy to clean.

Why can't UHMWPE be welded?+

UHMWPE has such a high molecular weight that it does not flow properly when heated — it degrades before truly melting. This makes conventional plastic welding ineffective. Mechanical fastening with countersunk bolts is the standard joining method for UHMWPE wear liners.

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