Description
Soudal LMN Slate Grey Silicone Sealant 300ml
Soudal LMN Slate Grey is a professional neutral cure silicone sealant for glazing, frames, joints, and exterior sealing. It gives a clean slate grey finish and stays flexible after curing. It is a strong choice for trade jobs where movement, weather resistance, and neat appearance all matter.
This silicone works well for window frames, door frames, perimeter sealing, façade joints, roofline details, and general construction use. It bonds to many common building materials used in modern building work. As a result, it suits both new installations and repair work.
It is a low modulus sealant, so it can handle joint movement better than more rigid sealants. That makes it useful on external joints exposed to changing weather. It also offers good resistance to UV, rain, and general ageing. Therefore, it is a reliable option for long-term outdoor sealing.
The slate grey colour is ideal for darker window and door frames, cladding details, trims, and other modern external finishes. It helps create a neat and consistent look around openings and joint lines. In many cases, it is a better visual match than white or clear sealant.
The 300ml cartridge is easy to apply with a standard sealant gun. For best results, apply it to clean, dry, and dust-free surfaces. Smooth the joint before a skin forms. Always test first on unfamiliar surfaces to confirm suitability and adhesion.
Available as a single 300ml tube or trade box quantity, this Soudal LMN Slate Grey silicone sealant is ideal for both small jobs and larger installation work.
This product is suitable for professional users and DIY customers who want a dependable external silicone sealant. It is especially useful where a flexible, weatherproof, and colour-matched joint is needed.
Browse our full range of silicone and sealants. For full technical information, view the Soudal technical data sheet.








