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Würth High-Temperature Silicone

Würth High-Temperature Silicone

0892330

24 in stock

Key Features

  • Special silicone sealant designed for joints and assemblies exposed to high thermal loads and chemical exposure.
  • Withstands continuous temperatures up to 250°C, and short term peaks up to 300°C (for 1.5 hours).
  • Excellent resistance to a wide range of chemicals, UV radiation, and ageing, ensuring long-term performance. 
  • Highly elastic formulation with 20% movement absorption and up to 250% elongation at break.
  • DIN 4102 Class B2 certified - classified as normally flammable in the cured state.
  • Suitable for chemically exposed joints (refer to resistance list).
  • Weather- and UV-resistant, ideal for both indoor and outdoor use in industrial environments.
  • Compatible with coating applications, but not paintable.
£20.99 GBP
£20.99 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.

Shipping Information

What Are My Shipping Options?

In-Store Pickup

In-Store pickup is available on all purchase. Pickups are available Monday - Friday between the hours of 9:00–17:00. 

An email confirmation will be sent when your order is ready for collection. 

Free Shipping

We offer free Standard (2-3 Days) shipping on orders within the United Kingdom on orders over £100. Please note, some large items that require specialist courier companies, such as large mirrors and palleted items are excluded from this deal.

Shipping Fees

We also offer shipping at the following rates:

Standard-Size Parcel

Standard (UK Only) - 2-3 Days - £2.99

Express (UK Only) - 1-2 Days - £4.99

International (EU) - 3-7 Days - £14.99

International (ROW) - 5-10+ Days -£23.99


Large Parcel

Standard (UK Only) - 2-3 Days - £2.99

Express (UK Only) - 1-2 Days - £4.99

International (EU) - 3-7 Days - £14.99

International (ROW) - 5-10+ Days - £69.99

Most UK orders will be sent using Royal Mail, with larger items being sent with DPD.

International orders within the EU will normally be dispatched with Royal Mail, DPD, or UPS.

International orders to the rest of the world will normally be sent with DPD or UPS.

Please note, international delivery charges are very volatile and subject to change. We will do everything in our power to honour the delivery fee, however, in some cases, shipping may increase in price. In this event, you will be given the offer to pay the difference or cancel the order and receive a full refund.

Please note, we may be subject to various rules and restrictions in relation to some international deliveries, and you may be subject to additional taxes and duties over which we have no control. If such cases apply, you are responsible for complying with the laws applicable to the country where you live and will be responsible for any such additional costs or taxes.

Dispatch Times

Orders placed before 15:00 Monday - Friday will be shipped on the same day. 

Orders placed after this time will be shipped on the following business day,

Please note, we are closed at weekends, as well as English Bank Holidays.

Returns Policy

Our refund policy can be found at the following address: https://esupplyline.com/policies/refund-policy.

Further Information

You can contact us for further information on our shipping policies using the following:

Phone: 01953 711 881

Email: sales@esupplyline.com

Live Chat: Available on our website, Monday - Friday, 8:30 - 17:00.

Contact Form: https://esupplyline.com/pages/contact

View full details
Product Product subtotal Quantity Price Product subtotal
Würth High-Temperature Silicone
Würth High-Temperature Silicone0892330
Würth High-Temperature Silicone0892330
£20.99/ea 		£0.00
£20.99/ea £0.00

Description

High-Performance Silicone Sealant for Extreme Heat Applications

Würth High-Temperature Silicone is a specially formulated acetoxy-curing sealant designed to provide exceptional thermal and chemical resistance for demanding industrial environments. It forms a durable, permanently elastic joint capable of withstanding extreme temperatures and mechanical stress, making it ideal for use in furnace, heating, and ventilation systems.

Exceptional Heat Resistance

This silicone compound remains stable under continuous heat exposure up to 250°C, and can tolerate short-term thermal peaks up to 300°C for 1.5 hours without degradation. Its high-temperature endurance makes it suitable for sealing components in furnaces, engines, boilers, dryers, and industrial heating equipment.

Durable and Weather-Resistant

The sealant is resistant to UV radiation, ageing, and atmospheric influences, ensuring reliable performance in both interior and exterior applications. Its elastic formulation absorbs vibration and movement, maintaining a secure, crack-free seal over time.

Excellent Chemical Resistance

Würth High-Temperature Silicone demonstrates strong resistance to industrial chemicals, oils, and solvents. It is ideal for use in environments where thermal and chemical stress occur simultaneously, such as industrial plants, HVAC units, and chemical processing systems.

Safe and Compliant

This sealant is classified under DIN 4102 Building Material Class B2 as normally flammable in the cured state. It is free of fungicidal additives and is suitable for use in non-sanitary applications such as industrial, mechanical, and heating system assembly.

Easy Application and Clean Curing

Supplied in a 310ml cartridge, Würth High-Temperature Silicone can be applied using a standard sealant gun. It cures through acetoxy (acidic) reaction, releasing a mild vinegar-like odour during curing, and forms a dense, elastic joint with high adhesion to metals, glass, and ceramics.

More Information

Application Instructions

  1. Ensure all surfaces are load-bearing, clean, dry, and free from grease, rust, and water.
  2. On porous materials, apply a suitable primer to improve adhesion.
  3. Cut the cartridge nozzle to the desired bead size and apply the sealant evenly to the joint.
  4. Smooth the surface with a suitable tool within the skin formation time (8-12) minutes.
  5. Allow curing under ambient conditions (23°C, 50% RH) - curing rate approx. 2 mm per day.
  6. Ensure adequate ventilation during curing; not that thicker layers will extend curing time.

Usage Notes:

  • Processing temperature: 5° to 40°C.
  • Temperature resistance: -50°C to 250°C (short term 300°C).
  • Not suitable for structural glazing or continuous immersion in water.
  • Not overpaintable.
  • Store at temperatures up to 25°C in a dry, shaded location. Shelf life 24 months from production.

Specifications

Chemical Basis: Acetoxy-curing silicone (sauer silicones)

Colour: Red-brown

Contents: 310 ml cartridge

Odour: Vinegar-like during curing

Density: 1.05 g/cm³

Skin Formation Time: 8–12 min (23 °C, 50% RH)

Curing Rate: 2 mm/day (23 °C, 50% RH)

Breaking Elongation: 350 %

Shore A Hardness: 30

Movement Absorption: 20 %

Processing Temperature: +5 °C to +40 °C

Temperature Resistance: -50 °C to +250 °C (short-term up to +300 °C)

Flashing Point: 250 °C

Building Material Class: B2 – Normally flammable (DIN 4102)

UV Resistance: Yes

Ageing Resistance: Excellent

Coating Compatibility: Yes (paint wetting unaffected)

Paintable: No

Fungicidal Properties: None

Shelf Life: 24 months (max. +25 °C, stored dry and shaded)

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