Description
Soudal Silirub HT® – N is a high-temperature-resistant, neutral-cure silicone sealant that withstands temperatures of up to 280 °C. It is highly flexible and weatherproof, offering primerless adhesion on all common construction materials, including glass, plastics, masonry substrates, metals, and wood. The sealant has a high movement capability and is resistant to UV radiation, rain, snow, ozone, and many chemicals.
Available in black 300ml cartridge.

Applications for Soudal Silirub HT® – N
It is suitable for sealing elastic joints that require high temperature resistance, including gaskets, hot water installations, pipework, ovens, furnaces, and chimney flues. It is suitable for both external and internal applications.
Featured properties
- Neutral cure silicone sealant
- High temperature resistance – up to 280°C
- External and internal
- Highly flexible and durable
- Virtually odourless
- Black in colour
You may also be interested Soudal Silirub HT® – A, an acetoxy high temperature version. Acetoxy silicone: cures fast, smells like vinegar, good for glass and tiles, can corrode metal. Neutral-cure silicone: low odor, non-corrosive, works on metal, stone, wood, plastic, better for general construction.
Instructions
- The surface must be rigid, clean, dry, free of dust and grease before applying Silirub HT N.
- Apply with a manual or pneumatic caulking gun.
For more information, please contact us. All prices are inclusive of VAT.
If you have any questions, don’t hesitate to contact us via the yellow chatbox, fill out our online contact form, email us at [email protected] or call us directly on +44 (0) 121 378 2909.










