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High Temp SILICONE for Fireplaces and Flues in the UK - Best Quality Silicone Seals

High Temp SILICONE is a vital component for fireplace and flue installations in the UK. Specially formulated to withstand extreme temperatures, this silicone sealant ensures a secure and durable connection between components. Whether you're sealing flue pipes, flashings, or cowls, our High Temp SILICONE offers exceptional heat resistance and reliability.
High Temp SILICONE is a vital component for fireplace and flue installations in the UK. Specially formulated to withstand extreme temperatures, this silicone sealant ensures a secure and durable connection between components. Whether you're sealing flue pipes, flashings, or cowls, our High Temp SILICONE offers exceptional heat resistance and reliability.


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£8.99 £89.99
Showing 8 of 8 items
No 3 Silicone Mi-Flash 6-102mm (1/4 to 4 inch) - High Temp.

No 3 Silicone Mi-Flash 6-102mm (1/4 to 4 inch) - High Temp.

12-3HT
£15.99 (including VAT)
In stock
MI-Flash - No 4 Metal Grey SILICONE 76-152mm 250x250

MI-Flash - No 4 Metal Grey SILICONE 76-152mm 250x250

12-4HT
£18.99 (including VAT)
In stock
MI-Flash - No 5 Metal Grey SILICONE  101-178mm 280x280

MI-Flash - No 5 Metal Grey SILICONE 101-178mm 280x280

12-5HT
£20.99 (including VAT)
In stock
MI-Flash - No 6 Metal Grey SILICONE 127-230mm 304x304

MI-Flash - No 6 Metal Grey SILICONE 127-230mm 304x304

12-6HT
£24.99 (including VAT)
In stock
MI-Flash - No 7 Metal Grey SILICONE 152-280mm 355x355

MI-Flash - No 7 Metal Grey SILICONE 152-280mm 355x355

12-7HT
£28.99 (including VAT)
In stock
MI-Flash - No 8 Metal Grey SILICONE 178-330mm 435x435

MI-Flash - No 8 Metal Grey SILICONE 178-330mm 435x435

12-8HT
£46.99 (including VAT)
In stock
No 9 Silicone Mi-Flash 304-457mm (10 to 18 inch) - High Temp.

No 9 Silicone Mi-Flash 304-457mm (10 to 18 inch) - High Temp.

12-9HT
£89.99 (including VAT)
In stock
Standard Fixing Kit

Standard Fixing Kit

32-SK1
£8.99 (including VAT)
In stock
Your High Temp SILICONE Questions Answered

Is High Temp SILICONE suitable for wood-burning stoves? -

Yes, our High Temp SILICONE is perfect for wood-burning stoves as it can withstand the high temperatures produced by burning wood.

How long does High Temp SILICONE take to cure? +

Can High Temp SILICONE be painted over? +

Is High Temp SILICONE resistant to weathering? +

Does High Temp SILICONE emit any harmful fumes during curing? +

Can High Temp SILICONE be used for outdoor applications? +

Is it necessary to wear protective gear when using High Temp SILICONE? +

When it comes to sealing vital parts of your fireplace or flue system, using High Temp SILICONE is crucial for maintaining safety and efficiency. Our premium silicone products are specifically designed to withstand the intense heat generated by fires, ensuring a secure and long-lasting seal. Whether you're a DIY enthusiast or a professional installer, our High Temp SILICONE is easy to apply and provides excellent adhesion to various materials, including metal and brick. Trust in our silicone seals for a reliable and durable solution for your fireplace or flue system.
Why Buy High Temp SILICONE Products
High Temp SILICONE is commonly used in the installation and maintenance of fireplaces and flues in the UK. This versatile sealant is ideal for sealing joints, connections, and gaps in flue systems, ensuring airtight and secure installations. Additionally, High Temp SILICONE is perfect for repairing minor cracks or damages in firebrick linings, prolonging the lifespan of your fireplace. With its high temperature resistance and weatherproof properties, High Temp SILICONE is a must-have product for any fireplace or flue project.

Trusted By Trade Professionals

Our High Temp SILICONE products and services are trusted by hundreds of professionals nationwide. We're committed to providing quality and reliability that meets the high standards of our customers.

Dedicated Support

Experience our unparalleled customer service and support when you buy High Temp SILICONE from National Flues. Our team is here to assist you every step of the way, ensuring your needs are met with expertise and care.

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