Soudal Silirub 2 Silicone Sealant Neutral Curing White 600ml Corrosion-Free

Product Overview

Soudal Silirub 2 Neutral White is a low-modulus, neutral-curing silicone sealant specifically formulated for professional building and renovation applications. Contractors and facility managers use it for interior and exterior joints where flexible, durable, and corrosion-free sealing is required, including contact with metal, brick, concrete, wood, glass, and various plastics. The product meets ISO 37 and ISO 7389 requirements, and is supplied as a 600 ml foil pack.

Its neutral curing mechanism is the standout feature, preventing corrosion when applied to aluminum or other metal elements, which is a significant advantage over acetoxy silicones that can react with metals. This characteristic makes Silirub 2 particularly suitable for window and door frame sealing, façade joints, and projects involving mixed-material substrates. Recommended for bulk procurement in commercial or residential construction, as well as OEM window and door manufacturing.

Key Features

• Neutral curing system ? eliminates risk of metal corrosion, ideal for use with aluminum, steel, and coated surfaces


• Wide thermal resistance ? maintains flexibility from -60°C to +180°C for challenging outdoor or industrial environments


• High elongation at break ? over 800% elongation per ISO 37 supports dynamic joints and movement accommodation


• UV resistant ? can be used for exterior seams and ensures long-term durability in sunlight-exposed installations


• Excellent adhesion ? bonds to porous and non-porous substrates including concrete, brick, wood, glass, PVC, acrylic, powder coatings


• Elastic recovery >80% ? conforms to ISO 7389 for long-term joint performance


• Fast skin formation ? skins in approximately 5 minutes at 20°C/65% RH, enabling efficient installation on site

Technical Specifications

• Base: Polysiloxane (oxime)


• Consistence: Paste


• Curing System: Moisture polymerization


• Skin Formation Time: 5 minutes (20°C/65% RH)


• Curing Rate: 2 mm/24 hours (20°C/65% RH)


• Hardness: Shore A 25 +/- 5


• Density: 1.03 - 1.25 g/ml (depending on color)


• Thermal Resistance: -60°C to +180°C


• Application Temperature: +5°C to +25°C


• Elongation at Break: >800% (ISO 37)


• Elastic Recovery: >80% (ISO 7389)


• Modulus at 100%: 0.38 N/mm? (ISO 37)


• Maximum Tensile Strength: 1.6 N/mm? (ISO 37)


• Permissible Deformation: 25%


• Package: 600 ml foil


• Available Colors: White, Brown, Black, Transparent

Applications

Used for sealing and bonding joints in windows, door frames, façade elements, and polycarbonate or acrylic panels in commercial, residential, and industrial construction. Suitable for interior and exterior seams, including contact with metals, glass, plastics, concrete, brick, and wood. Meets requirements for dynamic joints, thermal expansion, and UV-exposed installations. Ideal for bulk installation, OEM assembly lines, and projects where corrosion prevention is essential.

Packaging & Shipping

600 ml foil pack. Each unit includes the sealant, ready for use with standard applicator guns. Installation instructions provided. Bulk packaging options available for large orders.