Contact Us

Expanded PTFE Sheet - Teadit 24SH

William Johnston & Company Limited manufacture a range of gaskets using WRAS approved Teadit 24SH Expanded PTFE sheet for sealing potable water pipe flanges in contaminated land. It is resistant to almost all chemicals in liquid or gas form.

William Johnston & Company Limited are UK distributors for Teadit products – please visit here and here for more information.


• Increased blow out resistance.
• Higher pressure ratings.
• Higher pipeline and flange integrity.
• Highly chemical resistant.
• WRAS Approved to 85°C.
• -240°C to 270°C.
• pH 0 -14.


WRAS Approved Product.
Pressure rating up to 200 Bar.



Manufactured to order.
Ex-Stock sheet material.

Converted to standard and non-standard pipe flange gasket dimensions.

BS EN 1514-1:1997
PN6, PN10, PN16, PN25, PN40
BS 3063:1965
BS 10:2009
BS EN 12560-1:2001
ASME B16.21
CLASS 150 & 300

Technical Support

As a manufacturer we technically support all the products that we offer which:

• Saves time.
• Saves long term expense.
• Reduces leakage.
• Increases flange integrity.
• Decreases health & safety risk.
Whenever there is a sealing issue or technical question regarding one of our products then please get in touch on 0141 620 1666, Email us or simply fill out our online enquiry form below.

Return to Water Industry products >

WRAS Approved Product

Aramid Fibre Sheet and Gasket

Contact William Johnston & Company Limited

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

Failure to select the correct materials or products can result in damage to plant and equipment and personal injury. In specific applications, particularly where critical conditions exist, we suggest you contact us and we will consider with you the most suitable material or product. However, information supplied by William Johnston & Company Limited is intended only as technical co-operation and as a guide to the various uses of different products. No warranty is given in respect of information or recommendations by William Johnston & Company Limited which are only given for guidance and without any guarantee. The customer must satisfy themselves on the suitability of the material or product for the intended purpose. The correct fitting of products is the responsibility of the customer.

William Johnston Accreditation