Sealmaster of Cambridge - A Division of Dixon International Group Limited


Welcome to Sealmaster, a division of Dixon International Group Limited of Cambridge in the UK. Celebrating 60 years of cutting-edge research and products.

We are Manufacturers of Intumescent Fire and Smoke Seals, Acoustic, Draught and Weather Seals, Fire Glazing and Structural fire safety as well as bespoke solutions.

Product Categories


Product Focus: July

Product Focus: July Therm-A-Glaze 30 Plus🚨 The team at ISL have produced the Therm-A-Glaze 30…

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Have a question for us?

Have a question for us? Our friendly and helpful sales and technical team will have…

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White Glazing Tape – Product Focus

Product Focus One of Sealmaster’s signature products is our White Glazing Tape. It’s a non-ceramic…

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What is Passive Fire Protection?

Passive fire protection is required in all buildings within the UK, whether domestic or non-domestic….

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Sales and Technical Support

A Sealmaster expert is on standby with all the information you need for your sales related enquiries and to provide you with all the technical information you need for your bespoke solution or product.

SGS and UKAS Ceritification