GUR® PE-UHMW

Structure
GUR PE-UHMW is a polyethylene with a very high polymerisation rate. The viscosimetrically established molecular weight (= molar mass) lies between 3.9 and 10.5 million g/mol. This extremely high molar mass confines the processing possibilities for this raw material to special extrusion and compression molding processes.

Properties
GUR PE-UHMW is marked by a very specific combination of characteristics:

• extremely high notched impact strength
• high energy absorption capacity at high stress rates
• very good sliding quality
• excellent wear-resistance
• low friction loss values
• very good chemical resistance against acids, bases, and aggressive gases
• high resistance against stress cracking
• very good noise reduction
• wide variety of application possibilities due to dimensional stability at temperatures between -200 and + 90°C

Grades
The GUR PE-UHMW product range encompasses basic grades, modified grades, and special designs for various applications. The processing material is supplied in powder form and ram extruded into semi-finished products and profiles by way of compression molding processes.

Applications
Its high molecular weight allows GUR PE-UHMW to be applied where lower molecular PE types do not meet the given requirements. Additionally, the property profile of GUR PE-UHMW places this material among the engineering polymers and opens up to it the corresponding areas of application:

Machine Construction
machine components that are subject to high abrasion, such as rollers, cogwheels, chain guides, bearing bushes, chain tighteners

Chemical Industries
rotary pumps, taps, valves, silo coatings

Mining and Coal Processing
linings of conveyor troughs, chutes, trolleys, hoppers

Galvanic Engineering
galvanising drums, bearing shells, cogheels

Electrical Engineering
isolation parts, connector plugs, mountings, cable tongs

Filter Technology, Acoustics
porous molded parts for filtering liquids, for sound and vibration damping

Sports, Leisure
running surfaces for down-hill and cross-country skis

Orthopedics
Orthotic components and protheses

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