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PTFE Materials.

For applications where chemical resistance is paramount, SIGMA® is the only option. Utilising a unique manufacturing process exclusive to Flexitallic, SIGMA® represents the latest generation of biaxially orientated PTFE materials.

All components in the SIGMA® range are FDA compliant. The material's clean nature makes it ideal for use where product contamination is of concern, such as food, pharmaceuticals and electronics. The chemical resistance and dimensional stability of the material ensures total sealing reliability and minimises fugitive emissions.

Sigma® 500
Sigma® 511
Sigma® 533
Sigma® 588
Sigma® 600

Engineered and Manufactured in the UK
Cryogenic to 260°C
Outstanding chemical resistance across pH range
Suitable for low bolt load applications
Materials available in a range of different sheet sizes and thicknesses
FDA compliant
Available for oxygen service
Easy to handle and cut

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Contact William Johnston & Company Limited

For more information about our Flexitallic products and services that are available world wide, contact us on +44 (0)141 620 1666, Email us or simply complete our online Enquiry Form.

Please note, failure to select the correct materials or products we supply (“the Products”) may result in damage to plant, equipment or property. In some instances, it may cause death or personal injury. We are not designers and do not give advice about design related matters concerning the Products. We can help and assist with the technical specifications for the Products. In specific applications, particularly where critical conditions exist, we will try to assist you within the limitations of the services that we offer. All information supplied by us is intended as technical co-operation outlining the specifications of the different Products which we supply. To the extent permitted in law, no warranty is given in respect of any information supplied by us. The customer must satisfy themselves as to the suitability of the Products for their intended application and use. The correct fitting of Products is the responsibility of the customer. Your statutory rights remain unaffected. Save in respect of death, personal injury or fraud, our entire liability to you, however arising from the supply of Products shall be limited to the £10M indemnity amount provided by our insurers.

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