About Smiths

We are a world-class supplier of engineering raw materials. Our objective is to provide all our customers, from the small machine shop to the large multi-national corporation, a supply path that continuously delivers the highest levels of service, quality and value.


Engineering Plastic

PVC U Engineering Plastic

PVC-u (u=unplasticised, or rigid PVC) is a flame retardant material with exceptional chemical resistance and low stress cracking. PVC-u shows high mechanical strength for continuous operating between -15°C and +60°C. We stock PVC-u in a variety of shapes and sizes.


PVC-u machines well but ensure the machining area is well ventilated or extracted, as PVC-u will give off chlorine if accidentally over-heated. Full machining instructions are available on request.

Chemical Resistance

PVC-u has a very good resistance to acids (except strong, oxidising acids), alkalis and hydrocarbons (except chlorinated hydrocarbons). It has limited resistance to aromatic compounds and should not be considered in contact with ketones or hot water.

Typical Applications

Commercial applications for this engineering material include:

  • Pumps and valve bodies
  • Gaskets
  • Bearing cages
  • Cores for rotary bush manufacture
  • Parts used in dental medicine
  • Sight tubes (transparent PVC-u)
  • Chemical tank construction

We stock PVC-u in round tube and hollow bar.

Technical Assistance

Our knowledgeable staff and resident metallurgists will be pleased to assist you further on any technical topic. Smiths Metal Centres Limited also boasts an in-house UKAS Accredited Testing Laboratory which is unique within the multi-metal and plastic stockholding sector. We believe this underlines our total commitment to quality and our ethos of being the complete service provider.

Additional Info

A technical datasheet for PVC-u is available in PDF file format. To view and download, please click here.

We offer in-house processing options - for more information, please refer to our processing services.

Read our corporate brochure by clicking here.

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