The DuPont™ FlexWrap™ NF (No Fasteners) is a high-performance, extendable, self-adhered flashing material designed to provide superior water protection around vulnerable areas like window sills, doors, corners, and custom-shaped openings. Crafted with a combination of DuPont™ Tyvek®, an elastic polyolefin film, and a highly adhesive butyl sealant, this moldable flashing tape offers a durable, flexible barrier that eliminates water infiltration and promotes long-term building integrity.
The 75 ft. roll is perfect for various flashing needs, providing a seamless, air- and water-tight seal without requiring mechanical fasteners—even around complex architectural shapes. As part of the DuPont™ Weatherization System, FlexWrap™ NF enhances energy efficiency, prevents moisture-related issues, and contributes to a healthier indoor environment.
Key Features:
- Water-Tight Protection: Effectively prevents water from entering wall assemblies, helping to protect against rot, mold, and structural damage.
- No Fasteners Required: The self-adhered butyl sealant securely bonds to most building substrates without the need for nails, staples, or other mechanical fasteners.
- Superior Flexibility: Designed to easily conform to complex shapes, including window sills, custom openings, and round-top windows, providing a seamless, airtight seal.
- UV Resistant for 120 Days: Can be exposed to sunlight during construction without degradation.
- Cold-Weather Application: Can be applied in temperatures as low as 25°F, remaining pliable even in colder conditions.
- Quick-Release Backing: Simplifies installation, reducing time and labor costs.
- Extreme Durability: Tough, tear-resistant construction that withstands job site wear and tear.
- No Asphalt Content: Eco-friendly formula for safer handling and application.
- 10-Year Limited Warranty: Backed by DuPont’s commitment to quality and long-lasting performance.
Product Specifications:
- Product Name: DuPont™ FlexWrap™ NF
- Roll Size: 6 in. x 75 ft. or 9 in. x 75 ft.
- Material: DuPont™ Tyvek® with Polyolefin Film and Butyl Sealant
- Adhesive: 100% Butyl-Based (No Fasteners Required)
- UV Exposure Limit: 120 Days
- Application Temperature: As low as 25°F
- Warranty: 10-Year Limited Warranty
- Compatibility: Suitable for wood, metal, vinyl, OSB, CMU, fiberboard, and foam board
Certifications & Compliance:
- AAMA 711-07 – Voluntary Specification for Self-Adhering Flashing
- ICC Code Compliant – Meets building code requirements
- Part of DuPont™ Weatherization System – Ensures complete building envelope protection
- Contributes to LEED Points – Supports sustainable building certifications
Ideal Applications:
- Window Sills & Door Thresholds
- Round-Top & Custom Shaped Windows
- Wall Penetrations & Pipes
- Vulnerable Corners & Rough Openings
- Non-Nailable Sheathing Materials (Foam Board, CMU, Fiberboard, etc.)
How It Works:
- Moldable & Flexible: Easily wraps into sill rough openings before window or door installation, creating a one-step, seamless protection layer.
- Redirects Water: Channels water away from the wall system, reducing the risk of water damage.
- No Mechanical Fasteners: The strong butyl adhesive eliminates the need for nails or staples, reducing potential leak points.
- Durable Air & Moisture Barrier: Complements the building envelope by maintaining a tight seal against air and moisture infiltration.
What’s Included:
- 1 Roll of DuPont™ FlexWrap™ NF – 6 in. x 75 ft.
- Quick-Release Backing for streamlined installation
- 10-Year Limited Warranty for long-term peace of mind
Why Choose DuPont™ FlexWrap™ NF?
- Prevents Water Damage: Ideal for high-risk areas like window sills, corners, and custom shapes.
- Increases Energy Efficiency: Reduces air leaks, helping homeowners save on energy bills.
- Simplifies Installation: No fasteners needed and easy to reposition during installation.
- Reduces Callbacks: Ensures complete and durable protection, lowering the chance of costly repairs.
The DuPont™ FlexWrap™ NF is a reliable, industry-trusted solution for builders and contractors seeking flexible, durable flashing that provides superior water and air sealing—especially in complex areas. Its easy installation, long-lasting performance, and no-fasteners design make it the ideal choice for new builds and renovation projects alike.
