Geocel Lead & Gutter Silicone Sealant Grey 300ml

Geocel Lead & Gutter Silicone Sealant Grey 300ml

Geocel Lead & Gutter Silicone Sealant Grey 300ml is a specialist exterior silicone sealant designed to provide durable, long-lasting weatherproof protection around guttering systems, lead flashing and suitable roofing joints.

Developed using premium-grade silicone powered by Dow technology, this neutral-cure formulation delivers excellent adhesion to compatible building materials, including lead. It is particularly useful for pointing joints between lead flashing and brickwork, sealing gutter connections and carrying out general exterior weatherproofing.

Rain, sunlight and changing temperatures can place considerable strain on exterior joints. Geocel Lead & Gutter Silicone is formulated to withstand these demanding conditions, creating a permanently weatherproof seal that helps protect suitable joints against water penetration.

Its highly flexible composition allows it to accommodate normal building movement, helping maintain a secure seal as materials expand and contract. The formulation is also designed not to shrink or crack, making it suitable for exterior joints where durability is particularly important.

The product's UV resistance provides additional protection against prolonged sunlight exposure, helping maintain its performance in exposed roofing and guttering applications.

The grey finish is particularly useful around lead flashing, grey guttering and compatible exterior building materials where a neutral appearance is preferred. It offers a practical alternative to black silicone when a lighter, less contrasting finish is required.

Whether you're repairing a gutter joint, resealing lead flashing or completing exterior property maintenance, Geocel Lead & Gutter Silicone Sealant Grey 300ml provides a flexible, weather-resistant solution for suitable roofing and guttering applications.

Best Uses

• Sealing joints and connections in compatible guttering systems.

• Pointing joints between lead flashing and brickwork.

• Weatherproofing suitable exterior roofing joints.

• Sealing around compatible lead flashing installations.

• Repairing appropriately prepared gutter joints and connections.

• Exterior property maintenance requiring a flexible silicone seal.

• Sealing compatible roofline fittings and building materials.

• Applications where a grey silicone finish is preferred.

• Weatherproofing exterior joints exposed to rain and sunlight.

How to Use

1. Ensure the surfaces and joints are clean, dry and free from dust, grease, dirt and loose material.

2. Remove deteriorated or incompatible existing sealant and prepare the joint according to the manufacturer's guidance.

3. Remove the nozzle and open the end of the cartridge.

4. Reattach the nozzle and cut its tip at an angle to achieve the required bead width.

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

6. Apply a continuous, even bead of silicone along the joint, ensuring good contact with both surfaces.

7. Smooth the sealant using an appropriate finishing tool to create a neat, consistent finish.

8. Allow the sealant to cure according to the manufacturer's instructions before exposing the joint to demanding conditions.

Ensure that the intended materials and joint design are compatible with the product before application. Curing time will vary depending on temperature, humidity and joint dimensions.

Key Features

• Specialist Lead & Gutter Sealant: Developed for sealing guttering, lead flashing and suitable exterior roofing joints.

• Neutral-Cure Silicone: Suitable for a range of compatible building materials and exterior sealing applications.

• Excellent Adhesion to Lead: Particularly useful for lead flashing and lead-to-brickwork joints.

• Permanently Weatherproof: Helps protect exterior joints against rain and environmental exposure.

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

• Highly Flexible: Accommodates normal joint movement and expansion.

• Will Not Shrink or Crack: Helps maintain an effective, durable seal over time.

• Highly Durable: Designed for long-term performance in exposed exterior conditions.

• Grey Finish: Offers a neutral-coloured appearance around suitable roofing and guttering materials.

• Premium-Grade Silicone: Powered by Dow technology for dependable sealing performance.

• Exterior Applications: Ideal for appropriate roofing, guttering and weatherproofing projects.

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

• Barcode: 5033383000102

Available Colours

Geocel Lead & Gutter Silicone Sealant 300ml is available in Grey and Black. Choose Grey for a neutral finish around compatible lead flashing, guttering and exterior building materials, or Black for a darker appearance around suitable roofline fittings.

Also available in: Black.

Buy Geocel Grey Lead & Gutter Silicone at Rightway Bevans

Looking for grey gutter sealant, lead flashing silicone or a weatherproof sealant for roofing maintenance?

Rightway Bevans Home & Garden serves customers across Chester, Wirral, Cheshire and North Wales, offering a range of sealants, adhesives, roofing maintenance products and DIY essentials.

Geocel Lead & Gutter Silicone Sealant Grey 300ml is a practical choice for suitable gutter repairs, lead flashing joints and exterior weatherproofing projects where flexibility, excellent adhesion and a neutral grey finish are required.

Whether you're maintaining existing guttering, resealing lead flashing or completing a larger exterior home improvement project, visit your nearest Rightway or Bevans store to explore the products available.

Check availability in your local store on our website.