TRI-FIN®

The TRI-FIN® Weatherseal is a high-performance solution for all windows and doors, including patio doors, offering superior sealing and insulation.

With three integrated fins, it reduces air and water infiltration, improves energy efficiency, and decreases outside noise by up to 25% compared to single-fin options. The adaptable design allows the outermost fins to be positioned among or outside the pile fibers to suit various needs.

Available in ULTRA FIN® for durability or ULTRA SOFT FIN® for smooth, quiet operation, this weatherseal combines innovation and versatility for exceptional functionality in residential and commercial applications.

Features & Benefits

  • Three pliable barrier fins integrated into an assembly with self-supporting pile, and built-in “pile directors”, providing the ultimate seal in a pile and fin weatherseal
  • Tests have indicated a 25% improvement in air infiltration compared to a single fin
  • Solid polypropylene backing inserts more easily, saving time and reducing waste
  • Pile height and backing width are always uniform because of Ultrafab’s unique non-woven manufacturing systems
  • TRI-FIN® weatherseals have the structural integrity and consistency which assures a tight seal and barrier against air and water infiltration
  • No possibility of off-center pile that binds, breaks or stretches in an extrusion
  • Ultrafab’s unique ultrasonic welding assembles the fin, fibers and backing into an integrated, unified assembly that won’t break apart during fabrication or while in use
  • Need a softer fin? Ask about ULTRA SOFT FIN®. Ultrafab can also provide a combination of ULTRA SOFT FIN® and ULTRA FIN®
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Specifications

TRI-FIN® Weatherseal Choices
Pile Heights Inch
Metric		 .200″ to .430″
5.08mm to 10.92mm
Pile Densities Light, Medium, High or Very High
Standard Backing Widths Inch
Metric		 .187″ | .200″ | .210″ | .229″ | .270″ | .310″
4.75mm | 5.08mm | 5.33mm | 5.82mm | 6.86mm | 7.87mm
Backing Options Standard All backing widths
T-Loc® S7 – All standard backing widths except .229; max pile height .430″
S9 – All standard backing widths including .229″; max pile height .430″
Adhesive Available on .187″, .270″ and .310″
Colors Standard Black, White, Grey, Beige, Brown
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Downloads

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Usage

This product is recommended for:

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Available Options

Adhesive Backed

For applications without T-slots or kerfs, Ultrafab offers adhesive-backed solutions, including standard PSA, foam padded PSA and VHB (Very High Bond) PSA. These adhesives ensure secure bonding and adaptable performance for various residential, commercial, and architectural needs.

GOLD SERIES™

The Gold Series™ weatherseal is designed for extreme weather conditions, offering durability and high resistance to mold, mildew, and fungus. It allows the use of black, white or grey pile, previously unsuitable for demanding environments, and is available in ULTRA SOFT FIN® and ULTRA FIN® versions. With specially marked fenestration products against harsh elements like sunlight, coastal exposure, humidity, and snow.

ULTRA FILL®

ULTRA FILL is a semi-rigid material that is added to the bottom of the ULTRA PRO U shaped backing to increase friction once pile is inserted into a profile. This high friction material aggressively eliminates movement of the pile during window processing. This process meets the demands of deep T-slot configurations while ensuring zero pull from the end of the profile to eliminate waste during cutting operations.

ULTRA LOC®

Ultrafab’s backing option features alternating tabs on both sides to secure the backing in place, even when T-slots are slightly oversized. It comes in three versions: S7 with .015″ tabs, S9 with .025″ tabs, and S10 with .030″ tabs, ensuring adaptability to different applications and tolerances.

ULTRA PRO®

This U-shaped backing option is available across all product lines. Allowing for on-line insertion in extrusion and pultrusion applications, securing the weatherstrip in place to prevent fallout during window fabrication and eliminating the need for both staking and manual insertion. The backing size is customizable to accommodate different T-slot geometries.

Related products

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Ultrafab offers a wide range of products beyond those shown here. Contact us for more information.

Ultrafab Innovations

Leveraging cutting-edge technologies, Ultrafab is committed to driving innovation and operational excellence. These advancements enable us to automate complex tasks, enhance final product performance, and provide unparalleled efficiency across our processes

Ultrasonic Welding

Ultrafab uses ultrasonic welding to enhance the durability and performance of our products. This advanced process employs high-frequency vibrations to fuse materials together without adhesives or fasteners, ensuring precise and reliable bonds and preventing separation during fabrication or use. From weather seals to specialized components, ultrasonic welding enhances product integrity and durability. By leveraging this technology, Ultrafab achieves superior performance and consistency in our manufacturing process compared to our competitors.

3D Additive Manufacturing

By utilizing 3D printing, Ultrafab efficiently designs and produces precise components for our production equipment. Additionally, this technology allows for the rapid creation of intricate, quick-turn tooling and fixtures for custom prototypes. This results in the ability to provide fit and form samples at reduced costs and in a shorter timeframe.

Rapid Prototyping

Ultrafab’s rapid prototyping quickly develops and qualifies new product concepts, allowing for faster iteration and refinement. Ultrafab is home to an experienced onsite R&D team and model shop, equipped with routers, lasers, robotics, and automation. By employing advanced technologies, functional models are created to identify design flaws early, streamline production processes, and shorten development time.

Laser Cutting

Laser cutting offers exceptional precision and customization, allowing for the creation of intricate shapes and tailored designs to meet specific needs. This method ensures clean, accurate cuts across various materials, making it ideal for producing components with unique specifications.

Dedicated Design Services

There is no standard sealing system that works for all applications. Ultrafab’s specialty products division provides innovative and timely solutions for a broad variety of applications. We have onsite engineers and product development staff to help determine exact solution for an application. Ultrafab also carries ready-to-ship samples of standard product offerings to help guide decision making. Contact us today.

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