Vantell AeroSeal EX High-Perm Exterior Acrylic Tape is a single-sided, vapour-permeable exterior sealing tape designed for WRB laps, sheathing joints, window and door flashing connections, and weather-resistant building envelope applications.
The tape combines a PP non-woven backing with a high-performance acrylic adhesive, providing strong adhesion to common building substrates while allowing vapour diffusion through the assembly. It is suitable for exterior airtightness, weathertightness and moisture-management applications where a vapour-open sealing solution is required.
Key Features
- Single-sided exterior acrylic sealing tape
- Vapour-permeable / high-perm construction
- Designed for WRB laps, sheathing joints and exterior envelope connections
- Suitable for window and door flashing transitions
- PP non-woven backing for flexible and conformable application
- Strong adhesion to non-woven fabric, board, aluminum plate and cement board
- Low-temperature application from -20°C
- Temperature resistance from -40°C to +90°C
- UV exposure resistance up to 180 days
Typical Applications
- Sealing overlaps of vapour-permeable WRB / housewrap
- Sealing sheathing board joints
- Exterior window and door flashing connections
- Air and weather sealing around penetrations and transitions
- Vapour-open building envelope systems
Product Structure
- Backing / Carrier: PP non-woven fabric
- Adhesive: High-performance acrylic adhesive
- Release Liner: Silicone-coated paper
For best long-term performance, the tape should be applied to clean, dry and stable substrates. Final suitability should be confirmed according to the project substrate, climate conditions and installation requirements.
