Soudal Silicone Roof & Gutter Sealant 300ml

Soudal Silicone Roof & Gutter Sealant is a premium, weather-resistant silicone sealant purpose-built for sealing, waterproofing, and bonding in exposed outdoor environments. Whether you're sealing a leaking gutter joint, waterproofing around roof flashings, or closing gaps in a roofline, this sealant delivers a durable, flexible seal that holds up in the harshest Australian conditions — from tropical heat and UV exposure to heavy rain and temperature extremes.

Formulated for strong adhesion across a wide range of common roofing and guttering surfaces, it bonds reliably to aluminium (including powder-coated and anodised), PVC, roof tiles, stainless steel, zinc, and galvanised coated surfaces without priming in most applications. Once cured, the silicone remains permanently flexible — meaning it moves with the structure through expansion and contraction rather than cracking or pulling away from the substrate over time.

Available in clear for a seamless, invisible finish, and grey to blend with metal roofing, gutters, and colorbond surfaces. For best results, clean non-porous surfaces before application.

One tube. Leak sealed. Job done.

Key specifications:

Suitable for:

• Roof and gutter sealing and waterproofing
• Flashing and roof tile sealing
• Gutter joint sealing and repair
• Sealing around penetrations and fixings on metal roofing
• General exterior sealing on aluminium, PVC, stainless steel, zinc, and galvanised surfaces