External & Internal Airtight connection tape - NO Slits

The Ampacoll Flexx Pro is a professional grade adhesive tape designed for both internal and external airtight and windproof sealing applications. Tearproof yet exceptionally flexible, it adapts seamlessly to uneven surfaces and absorbs component movements, ensuring long-lasting, secure bonds even under demanding conditions.

Engineered for reliability, this high-performance tape delivers maximum adhesive strength at temperatures as low as -5 °C, making it the ideal choice for year round use. Thanks to its crosswise flexibility and soft, adaptable structure, Ampacoll Flexx Pro ensures airtight connections that remain durable over time.

With its serrated design, the tape can be easily torn by hand for quick, efficient application - no cutting tools required. It’s the go to solution for sealing overlaps, joints, penetrations, and masking boards on ridges, hips, and grooves.

Key Features

• Tearproof yet flexible – strong and adaptable for long-term durability.
• High adhesive strength – performs reliably down to -5 °C.
• Crosswise flexibility – absorbs component movement for a secure seal.
• Hand-tearable serrated edges – no scissors needed.
• Weather resistant for up to 4 months – dependable in real-world site conditions.

Ideal Use

• Airtight & windproof sealing of overlaps, board joints, and penetrations.

Application Guidelines

• Surfaces must be clean, dry, dust-free and grease-free
• Tape, substrate, and ambient temperature should be within recommended processing range
• Apply stress-free, pressing firmly onto the surface for maximum adhesion
• Avoid dragging heavy objects, excessive walking, or mechanical stress on installed areas

Ampacoll Flexx Pro combines Swiss precision with site-proven performance - your trusted choice for airtight and windproof sealing.