Soudal ALU-SEAL

Soudal Alu-Seal is a high-performance, neutral-cure silicone sealant specifically engineered for the professional sealing of aluminum systems. Whether you are working with powder-coated aluminum, anodized frames, or curtain walling, Alu-Seal provides a flexible, weather-tight barrier that moves with the structure without losing adhesion.

Its advanced formula is designed to withstand the unique thermal expansion and contraction cycles of metal constructions, ensuring long-term durability in both residential and industrial applications.

Key Features & Benefits

• Superior Metal Adhesion: Specifically formulated for excellent primerless adhesion to aluminum, steel, stainless steel, and zinc.

• Non-Corrosive: A neutral-cure (alkoxy) system that will not react with or corrode sensitive metal surfaces or coatings.

• High Movement Capability: Remains permanently elastic, accommodating structural shifts and thermal expansion without cracking or peeling.

• Weather & UV Resistant: Highly resistant to aging, ozone, and extreme weather conditions—ideal for exterior facades and window systems.

• Low Modulus: Provides the flexibility needed for expansion joints in large-scale metal cladding and glazing projects.

• Wide Temperature Range: Once cured, it maintains its properties from -60°C to +150°C.

Primary Applications

• Aluminum Joinery: Sealing joints between aluminum window frames and door profiles.

• Curtain Walling: Weather-sealing for architectural glass and metal facade systems.

• HVAC & Ducting: Sealing metal ductwork where high-quality, non-corrosive joints are required.

• General Metal Construction: Ideal for gutters, roofing sheets, and metal-to-masonry connections.