Soprema Sopraseal Sealant – Elastomeric Sealant for Air & Vapour Barrier Systems | IPS Metal

Soprema Sopraseal Sealant is a high-performance elastomeric sealant specifically formulated for use with Soprema Sopraseal air and vapour barrier membranes. It provides superior adhesion to common building substrates and maintains flexibility to accommodate structural movement, ensuring long-term weatherproofing and air tightness in wall assemblies.

Key Features:

• High-performance elastomeric formulation for long-term durability

• Excellent adhesion to concrete, wood, gypsum, metal, and membrane surfaces

• Remains flexible under temperature fluctuations and movement

• Compatible with all Soprema Sopraseal membranes and accessories

• Easy to apply by caulking gun or trowel

• Non-sag consistency for vertical and overhead applications

• Available in multiple colors to match air barrier systems

• Meets ASTM C920, Type S, Grade NS, Class 25, Use NT, G, A, O

Recommended Applications:

• Sealing joints, laps, and penetrations in air/vapour barrier systems

• Transitions between dissimilar materials (metal, concrete, masonry, sheathing)

• Window and door perimeters

• Flashing terminations and wall-to-roof connections

• Detailing for Soprema Sopraseal membranes such as Stick 1100T, AVB AT, and VP

Installation Guidelines:

• Surfaces must be clean, dry, and free of dust, grease, or frost

• Apply in continuous beads using a standard caulking gun

• Tool immediately for full contact and smooth finish

• Do not apply during heavy rain or on wet surfaces

• Clean tools with mineral spirits before curing

Technical Specifications: