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Siroflex  |  SKU: SCONTLS300G

SX Lead Sheet Sealant - Grey - Silicone Sealant for Lead Flashings - 300ml

Regular price £8.03
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SX Lead Sheet Sealant is a grey, neutral cure silicone sealant designed for use with lead flashings, masonry, and roofing details. Weatherproof and UV resistant, it delivers a flexible, durable seal that bonds to lead, brick, concrete, and stone. Suitable for external applications, it remains permanently elastic and accommodates thermal movement.


Colour: Grey
Size

Delivery & Returns

Place your order before 3pm for next working day dispatch (subject to stock availability). Delivery times are estimates and may vary depending on the product, supplier and delivery location.

Returns: Eligible consumer orders may be cancelled within 14 days of receiving the goods. Return conditions and exclusions apply. Please see our full Delivery & Returns Policy for details.

Please note: Additional delivery charges may apply for Northern Ireland, Isle of Wight, Isle of Man, Isles of Scilly, Scottish Highlands & Islands, and Channel Islands. We'll contact you if any additional charges apply, or you can call us on 0800 111 4898 before placing your order.

Description

SX Lead Sheet Sealant - Grey

Weatherproof Neutral Cure Silicone Sealant for Lead Flashings & Roofing Applications

SX Lead Sheet Sealant is a high-performance, neutral cure silicone sealant formulated for use with traditional lead sheet and flashings. It provides a long-lasting, flexible, and waterproof seal, ideal for use in roofing, cladding, and masonry applications where lead, brick, stone, or concrete meet. This professional-grade sealant remains permanently elastic, resisting UV, weathering, and thermal movement while bonding without primer to most common roofing materials.

Key Features & Benefits

  • Specialist Lead Compatibility: Designed for use with lead sheeting, flashings, and traditional roofing details.
  • Neutral Cure Formula: Non-corrosive to metals, with excellent adhesion to lead, masonry, and concrete.
  • Weather & UV Resistant: Maintains elasticity and watertight properties in harsh external conditions.
  • Permanently Flexible: Accommodates movement caused by temperature changes or building settlement.
  • Easy to Apply: Smooth application with a standard sealant gun — fast skin time and easy tooling.

Product Details

  • Type: Neutral cure silicone sealant
  • Colour: Grey
  • Packaging: 310ml cartridge
  • Skin Time: Approx. 10–20 minutes
  • Full Cure: 24–48 hours depending on joint depth and conditions
  • Movement Capability: ±25%

SKU: SXLEADSEAL310

Application Instructions

  1. Preparation: Ensure surfaces are dry, clean, and free from dust, grease, and old sealant or paint.
  2. Apply Sealant: Cut nozzle to joint width, insert cartridge into standard gun, and apply with steady pressure.
  3. Tool Off: Smooth the bead with a wetted spatula or sealant tool before skin forms for a professional finish.

Limitations

  • Not suitable for overpainting or use in permanently immersed joints.
  • Use in well-ventilated conditions and test on sensitive materials if unsure.

Health & Safety

Low hazard when used correctly. Avoid contact with eyes and prolonged skin contact. Use standard PPE during application. Refer to the Safety Data Sheet (SDS) for full details.

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