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PET (PET-P) Engineering PlasticPET (PET-P)

Stable, tough, Load-Bearing Engineering Plastic

A high quality wear-resistant engineering plastic material with the chemical name polyethylene terephthalate. It is a crystalline material, a member of the polyester family of plastics, which should not be confused with the clear, amorphous version used to make bottles for carbonated drinks. PET exhibits particularly good dimensional stability and is available in a range of grades and forms to suit many applications.


While not as fine as acetal, the machinability of the above grades of PET is excellent. As with all plastic materials, experience has shown that extra care must be taken with larger diameters, especially in the colder months when plastic materials lose some of their toughness and have less resistance to machining stresses. It’s important that these materials are not machined while in a chilled condition. Full machining instructions may be supplied on request.

Chemical Resistance

PET has acceptable resistance to weak & diluted acids at 20°C. Contact with alkalis is to be avoided, as is long-term contact with water above 70°C because the material is sensitive to hydrolysis.

Technical Assistance

Our knowledgeable staff backed up by our resident team of qualified metallurgists and engineers, will be pleased to assist further on any technical topic. Smiths Metal Centres Limited also boasts an in-house UKAS Accredited Testing Laboratory which is unique in the metal and plastics stockholding sector, and extends our professional services to all our customers.

Download PET (PET-P) Plastics Datasheet

Typical Applications:

Mechanical engineering, automotive and general machinery construction - especially suited to close tolerance bearings running in water. Plain bearings, coil bodies, guide & clutch parts, gears, cams, rollers, slide bearings, seal rings and guide rails.


We can also process the material for you, courtesy of 30 band saws available throughout the group which includes availability and local service centre level.

Pick a Product

To find out more about Smiths Metal Centres extensive range of high engineering plastics, click on one of our products on the side menu of this web page.

Have a question or need a detailed quote?

Our staff are ready to take your call. For all supply and technical enquiries call us today
on 0845 527 3331 or click here to contact us.