Low Modulus Silicone. Flexible. Durable. Weather-Tight.

Arbosil Low Modulus Silicone Sealant is a professional-grade, one-part silicone designed for sealing joints subject to movement. It remains permanently flexible after curing, accommodating thermal expansion and structural movement without cracking or debonding. Brown is the go-to colour for timber window and door frames, brown uPVC systems, and brick or stone reveals where a natural, sympathetic finish is required.

Supplied in a 310ml cartridge.

Key Features

• Low modulus formulation — permanently flexible after cure
• Accommodates joint movement without cracking or debonding
• Brown colour — ideal for timber frames, brown uPVC, and brick reveals
• Excellent adhesion to glass, uPVC, aluminium, masonry, and timber
• Weather, UV, and temperature resistant
• 310ml cartridge

Ideal For

• Timber window and door frame sealing
• Brown uPVC system perimeter sealing
• Brick and stone reveal weathersealing
• General weathersealing on movement-prone joints

Also Available in Low Modulus

• Arbosil Low Modulus Silicone 310ml – Clear
• Arbosil Low Modulus Silicone 310ml – White
• Arbosil Low Modulus Silicone 310ml – Black
• Arbosil Low Modulus Silicone 380ml – Buff
• Professional Skeleton Sealant Gun

Volume: 310ml | Colour: Brown.