Home | Intumescent Seals | A Division of Dixon International Group


Welcome to Intumescent Seals, 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 & Smoke Seals. Specialising in passive fire protection products.

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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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Q – Can you paint over our Fire and Smoke Seals? A – Painting over…

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Therm-A-Glaze 30 Plus

The team at ISL have produced the new Therm-A-Glaze 30 Plus, which is a new…

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New Websites

Dixon International Group Ltd have taken a keen focus to ensure we can provide an…

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Sales and Technical Support

An Intumescent Seals 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.

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SGS System Certification & UKAS Management Systems