Material Characteristics

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858-1

Extruded Nylon 6.6

The hardest form of all Nylons and the most rigid of all extruded Nylons. High resistance to abrasion and heat but highly moisture absorbent. The humidity of the application needs to be taken into account and the dimensional changes allowed for. Easy to machine and widely used for gears, bushes, rollers, wheels, sprockets and bearings.

Nylon 6 Glass filled black

The addition of 20% Glass, produces a material with reinforced dimensional stability, flexibility and increased tensile strength. The additive reduces the coefficient of linear thermal expansion and moisture absorption. Excellent for applications demanding stiffness, creep resistance and resistance to high temperatures.

Nylon 6.6 /6 GX black

A co-polymer of Nylon 6.6 and Nylon 6, combining the benefits of both materials in terms of durability and abrasion resistance, but also being easier to process and machine.
The addition of Graphite as a lubricant enhances the life of the material form and requires two heating

processes during manufacture, compared to Cast Nylons, which are in a pre-process liquid state and require only one heat process. This eliminates the stability problems of Extruded Nylons when manufacturing intricate machined parts.

U.H.M.W. Pe

An Ultra High Molecular Weight Polyethylene with superior physical properties. Chemical resistant, impervious to water and has a high impact strength. Lightweight and resistant to low temperatures, with excellent coefficient of friction; its thermal stability makes it ideal for guide rails, gear wheels, pulleys and sprockets.

PTFE

The lowest coefficient of friction of all solid plastics. Excellent chemical resistance against most solvents and chemicals and good thermal stability. Non combustible, almost nil water absorption and excellent weather resistance. Ideal for chemical plants, electrical components, seals, insulators and chain guides, for use in high temperature applications, ie. ovens.

PVC

Polyvinyl Chloride in its unplasticised form is a widely used stock shape Plastic; being low in price, widely resistant to chemical attack, and having mechanical properties, making it suitable for many general engineering applications. Normally available in a grey colour, coloured grades are also available. In addition, special food approved and chlorinated versions are also available.

Applications include change parts, water treatment plant tanks and components, chemical tanks, pipework and lightly stressed mechanical components.

PVDF

A tough, hard and mechanically strong material with good chemical resistance and low coefficient of friction. Excellent electrical insulation properties, low moisture absorption and good resistance to weathering. Widely used in water systems and as linings for pipes, valves, pumps and water tanks, due to being physiologically safe. Not as resistant to high temperatures as PTFE but is stronger and has a greater load and creep resistance at low temperatures. Good mechanical, electrical and chemical properties make it ideal for use in the nuclear engineering, electrical and chemical processing industries.

Polypropylene

A low density, hard and rigid Hydrocarbon Polymer. Excellent resistance to fatigue from flexing, being almost unbreakable. Good electrical properties, resistant to chemicals, solvents, oils and greases. Good temperature resistance and low flammability make it ideal for use in the chemical industry and for claddings.

Polyester

A semi-crystalline Thermoplastic Polyester which exhibits high tensile strength and wear resistance properties. Good chemical resistance to organic chemicals and oils (but note that the material is attacked by oxidised mineral acids and is hydrolysed by hot water). The material has excellent dimensional stability, both in terms of low moisture absorption and good creep resistance. Also suitable for food contact.

Used for bushes, bearings, sliding parts, gears, cams, rollers, etc.