High Molecular Weight Polyethtlene (HMWPE) - PE500
PE500 has a molecular weight of +/- 600.000. Its impact & abrasion resistance is better than PE300 but not as good as UHMWPE. Like all polyethylene it has very good chemical resistance and low friction coefficient. Stocked in colours red & blue for use as food preparation boards. Not avialble in rod form. Temperature range -50°C to +90°C.
FEATURES
 Chemical: high chemical resistance typical of the polyolefins
Shock resistance, good even at low temperature.
High abrasion
resistance.
Low friction coefficient.
Low specific gravity.
Easy machinability
Colour: natural, blue, red
WEAK POINT
Compared to the engineering plastics it has lower thermal and mechanical properties: tensile stress, flexural and compressive strength, etc. Compared to UHMWPE, it is more rigid and its resistance to continuous shock is therefore lower.
APPLICATION
Mechanical: The low friction coefficient and its non hygroscopicity make it suitable for use as a bearing or mechanical parts with low loads, even when operating in water.
Food contact: physiologically inert, it is approved for food contact by the most important standards organisations. Thanks to this feature, it is widely used for components in food machinery, pumps for liquid food etc.
Electrical: very good dielectric properties, weatherproof.
Chemical: thanks to the high resistance to acids and alkali it is used for components in the chemical
industry.
The graph shows that the higher the molecular weight is, the higher the shock resistance, but that tensile stress decreases.
Green : tensile stress
Grey: shock resistance |
