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Siltech 300 NX
High Temperature Silicone

Formulated for High Temperatures. 

Introducing Siltech 300NX High Temperature Silicone, an advanced, oxime-based sealant designed for high-temperature applications. With the ability to withstand up to 300°C (Withstands heat up to 270°C continuously and 300°C intermittently), Siltech 300NX is the professional-grade solution for your sealing needs. Whether you’re an industry expert or a DIY enthusiast, rely on Siltech 300NX when the heat is on.

Siltech 300NX grey high temperature silicone sealant – oxime curing, heat resistant up to 300°C.
Siltech 300NX high temperature silicone sealant – withstands 270°C continuously and 300°C intermittently.

Product Overview

Properties

SILTECH 300 NX High Temperature Oxime Silicone sealant is one-part neutral curing, gunnable silicone sealant.

Heat resistance icon – Siltech 300NX silicone sealant withstands 270°C continuously and 300°C intermittently.
UV resistance icon – Siltech 300NX high temperature silicone sealant provides long-lasting outdoor durability.
Weather resistance icon – Siltech 300NX high temperature silicone sealant withstands rain, moisture, and harsh outdoor conditions.

Why Siltech 300NX High Temperature Silicone Stands Out

Heat Resistance Up to 300°C
Siltech 300NX high temperature silicone offers reliable performance, ensuring your seals remain secure and flexible even in high-heat conditions. Ideal for both industrial installations and automotive projects. Withstands heat up to 270°C continuously and 300°C intermittently.

Versatile and Durable Application
Siltech 300NX adheres effectively to a variety of surfaces, including metal, glass, and ceramic. From industrial machinery to home appliances, this heat-resistant silicone sealant provides a strong bond that endures.

Oxime Curing System for Long-Lasting Seals
The oxime curing system in Siltech 300NX is formulated for reliability, providing a durable and clean seal in challenging environments. Perfect for both indoor and outdoor use.

Siltech 300NX high temperature silicone sealant for fireplaces and stoves – heat resistant up to 270°C continuous and 300°C intermittent.
Siltech 300NX high temperature silicone sealant for construction and industrial installations – durable, weather and UV resistant

Versatile High Heat Silicone for Multiple Applications

From automotive exhaust systems to heating ducts and industrial machinery, Siltech 300 thrives in applications requiring heat resistance and structural integrity. Unlike conventional sealants, it remains stable and effective in high temperatures, delivering consistent, long-lasting results.

Seal with Ease Using Siltech 300 NX

Achieve high-quality sealing with Siltech 300 NX Silicone Sealant. Use our Sealant Estimator to determine how much you need and get started today!

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Contact Us Today

Have a technical question? Need support with your project?
Our team is ready to assist.

  • Cape Town: +27 (0)21 534 9055

  • Johannesburg: +27 (0)11 392 2426

  • Durban: +27 (0)31 701 3481

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