Nexoseal Mono - Airtight Sealing Tape - 100mm x 25M

Nexoseal Mono is a premium, monolithic airtight sealing tape engineered by Partel to provide a secure and permanent seal for the building envelope. Designed for both interior and exterior use, this high-performance adhesive tape is a critical component in achieving superior energy-efficient standards, including Passive House (PHA) requirements.

Whether you are sealing membrane overlaps or complex junctions, Nexoseal Mono offers the robust protection needed to prevent air leakage and ensure long-term durability.

Key Features

• Advanced Adhesive Technology: Features a high-tack acrylic adhesive that ensures high adhesion to a wide variety of substrates, providing a permanent airtight bond that improves with ageing resistance. It can be apled on Timber panels: OSB, MDF, plywood, steel frames, concrete, masonry, PVC, and metal. 
• Monolithic Backing: The elastic and breathable carrier allows for flexibility around corners and penetrations, ensuring the seal remains resilient even under structural movement.
• Weatherproof & UV Resistant: With excellent UV resistance and water-resistant properties, it can withstand harsh conditions externally, making it airtight and windtight.
• Vapour Management: Optimised for use with Exoperm breather membranes, it prevents moisture and damp ingress, protecting timber structures from decay.

Applications

NexoSeal Mono delivers a permanent, high-performance seal against air and wind infiltration for:

• Critical Connections: Perfect for membrane overlaps, joints, windows, doors, and structural penetrations.
• Versatile Construction: Optimised for timber frame, steel frame, and modular builds, whether new or retrofit.
• Dual-Environment Use: Engineered for both internal and external applications.
• Universal Compatibility: Bonds seamlessly to all Partel membranes (including EXOPERM), timber panels (OSB, MDF, plywood), concrete, masonry, PVC, and metal.