Geocel High Temperature Silicone Sealant Black 300ml

Geocel High Temperature Silicone Sealant Black 300ml

Geocel High Temperature Silicone Sealant Black 300ml is a specialist silicone sealant developed for applications where exposure to high temperatures makes ordinary silicone sealants unsuitable.

Formulated using premium-grade silicone powered by Dow technology, it is designed to withstand temperatures of up to 300°C while maintaining a flexible, durable seal.

Heat-resistant sealing is particularly important around suitable heating appliances, flue components and other installations where repeated temperature changes can place considerable stress on joints.

Geocel High Temperature Silicone is designed to accommodate normal expansion and contraction caused by heating and cooling, helping maintain seal integrity in compatible applications.

Its permanently flexible formulation makes it particularly useful where rigid sealing materials may struggle to accommodate thermal movement.

The silicone also provides excellent adhesion to suitable non-porous surfaces, creating a durable bond when applied to correctly prepared, compatible materials.

Its black finish makes it a practical choice for applications around dark-coloured stove surrounds, heating components and other suitable installations where a discreet, colour-coordinated appearance is preferred.

Suitable for both internal and external use, Geocel High Temperature Silicone also offers UV resistance, helping maintain its performance in appropriate outdoor environments exposed to sunlight.

Whether you're carrying out maintenance around a compatible stove, sealing a suitable flue joint or working on a heat-exposed installation, this specialist silicone provides a practical solution where conventional sealants may not offer sufficient temperature resistance.

However, Geocel High Temperature Silicone is not a fire-rated sealant and must not be used as a substitute for approved fire protection products. Always check the relevant appliance, flue and building specifications before application.

Best Uses

• Sealing compatible joints around high-temperature heating installations.

• Suitable applications around stove components and surrounds.

• Sealing approved joints associated with flues and chimneys.

• Compatible sealing applications around boilers and heating equipment.

• Suitable heat-exposed joints around ovens and hobs.

• Interior applications requiring a flexible, heat-resistant silicone.

• Exterior high-temperature sealing projects where the substrate and installation are compatible.

• Maintenance of suitable non-porous joints exposed to repeated heating and cooling.

• Applications where a black, heat-resistant silicone finish is preferred.

How to Use

1. Ensure the appliance or installation is switched off, completely cool and safe to work on.

2. Check the manufacturer's technical instructions to confirm the sealant is suitable for the intended temperature, surface and joint.

3. Remove deteriorated sealant and ensure the application surfaces are clean, dry and free from dust, grease and loose material.

4. Prepare the cartridge and cut the nozzle to the required bead width.

5. Insert the 300ml cartridge into a suitable sealant gun.

6. Apply a continuous, even bead to the prepared joint, ensuring good contact with the compatible surfaces.

7. Smooth the silicone using an appropriate finishing tool to achieve a neat, consistent seal.

8. Allow the silicone to cure fully in accordance with the manufacturer's instructions before exposing the joint to heat or returning the equipment to service.

Do not apply to hot surfaces. Follow the manufacturer's instructions regarding curing, ventilation and the safe recommissioning of appliances.

Key Features

• High Temperature Resistance: Designed to withstand temperatures of up to 300°C in suitable applications.

• Specialist Heat-Resistant Silicone: Developed for installations where standard sealants may not provide sufficient temperature resistance.

• Black Finish: Provides a discreet appearance around suitable dark-coloured heating components and surfaces.

• Permanently Flexible: Accommodates normal movement caused by heating and cooling.

• Excellent Adhesion: Bonds effectively to compatible non-porous surfaces.

• Internal and External Use: Suitable for appropriate indoor and outdoor sealing applications.

• UV Resistant: Designed to withstand sunlight exposure in suitable exterior applications.

• Highly Durable: Formulated for long-lasting performance in demanding conditions.

• Suitable for Specialist Heating Applications: Intended for compatible joints associated with flues, chimneys, stoves, boilers, ovens and hobs.

• Powered by Dow Technology: Contains a premium-grade silicone formulation.

• 300ml Cartridge: Suitable for controlled application using a standard sealant gun.

• Not Fire-Rated: Must not be used where a certified fire-resistant sealant is required.

• Barcode: 5033383000072

Buy Geocel High Temperature Silicone at Rightway Bevans

Looking for high-temperature silicone sealant, black heat-resistant silicone or a specialist sealant for suitable stove, oven or heating appliance applications?

Rightway Bevans Home & Garden serves customers across Chester, Wirral, Cheshire and North Wales, offering a range of sealants, adhesives, fixings and home improvement essentials.

Geocel High Temperature Silicone Sealant Black 300ml is designed for compatible sealing applications requiring resistance to temperatures of up to 300°C, permanent flexibility and excellent adhesion.

Whether you're carrying out maintenance around a heating appliance or completing a specialist DIY project, visit your nearest Rightway or Bevans store to explore the products available for your requirements.

Check availability in your local store on our website.