TRI-FIN® Weatherseals

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Ultrafab’s ultimate pile weatherseal for minimizing air and water infiltration

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  • 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®
TRI-FIN® Weatherseal Choices
Pile Heights Inch
.200″ to .430″
5.08mm to 10.92mm
Pile Densities Light, Medium, High or Very High
Standard Backing Widths Inch
.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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