H&B X-Seal Transition Membrane - 75' Roll
H&B X-Seal Transition Membrane is a self-sealing, self-adhering flashing tape engineered for use with the ENVIRO-BARRIER air and moisture barrier system. It is designed to seal critical transition areas such as window and door openings, panel joints, and dissimilar substrate interfaces. This high-performance membrane helps prevent air and water infiltration at vulnerable connection points in commercial and residential wall systems.
The membrane is made from a proprietary synthetic rubber adhesive that is integrally bonded to a reinforced polyolefin/polypropylene film. It can be used under ENVIRO-BARRIER Liquid to maintain barrier continuity where materials meet or shift. X-Seal is ideal for use around beams, columns, and irregular surfaces, creating a smooth transition from one plane to another. It provides long-lasting durability without rotting, cracking, or drooling like traditional asphalt-based products.
With a UV resistance of up to 120 days and compatibility with a wide range of substrates, this membrane is well-suited for demanding jobsite conditions. Available in multiple widths and manufactured from recycled content, X-Seal helps contractors meet performance and sustainability goals with ease.
Features
- Self-adhering and self-sealing for easy installation.
- Compatible with ENVIRO-BARRIER liquid-applied membrane systems.
- Seals around windows, doors, joints, and seams.
- Provides continuity across dissimilar substrates.
- Durable synthetic rubber adhesive resists cracking and rotting.
- Reinforced polyolefin/polypropylene backing adds strength.
- UV-resistant for up to 120 days of exposure.
- Asphalt-free formula won’t drool or bleed in heat.
- Backed with a removable release liner for clean application.
- Conforms easily to complex shapes and transitions.
- Helps maintain air and moisture barrier integrity.
- Available in 6 in., 12 in., and 18 in. roll widths.
- 75 ft roll length supports large area coverage.
- Contains 45% recycled content for sustainability goals.
H&B X-Seal Transition Membrane - 75' Roll Specifications
| Specification | Details |
|---|---|
| Product type | Self-adhering transition membrane |
| Primary use | Sealing joints, seams, and transitions in air and vapor barrier systems |
| Adhesive type | Heavy-duty synthetic rubber compound |
| Backing material | Reinforced polyethylene/polypropylene film |
| Available widths | 3 in., 4 in., 6 in., 12 in., 18 in., 24 in., 36 in., custom up to 72 in. |
| Roll length | 75 ft |
| UV resistance | Up to 120 days |
| Material composition | 45% post-industrial/post-consumer recycled material |
| Tensile strength (ASTM D751-95) | 130 lbs (machine direction), 124 lbs (cross direction) |
| Tear strength (ASTM D4533-91) | 46 lbs (machine direction), 44 lbs (cross direction) |
| Mullen burst strength (ASTM D751-95) | 180 psi |
| Permeability (ASTM E96 - B) | <0.075 Perms |
| Air permeability (TAPP-460) | >5000 Sec/100cc |
NOTE: Some configurations are non-stock, contact our customer service dept (CustomerService@CMUSupply.com) for price, availability and lead times.
IMPORTANT: Since each construction project is unique, the appropriate selection and use of any product contained herein must be determined by competent architects, engineers and other appropriate professionals who are familiar with the specific requirements of the project in question. This drawing and/or data sheet is the confidential and proprietary information of Hohmann & Barnard, Inc. and is not to be reproduced, copied or disclosed, in whole or in part, without the prior written consent of CMU Supply.
