SIGA Fentrim F – 4″

5.00 out of 5 based on 3 customer ratings
(3 customer reviews)


Meet the newest addition to the SIGA family. Fentrim F is the window and door sill-flashing tape of the future.


Product Description

Fentrim F


Meet the newest addition to the SIGA family. Fentrim F is the complete window and door sill-flashing tape you’ve been waiting for.

With more adhesive and adhesion strength than the Wigluv tape, this tape will stick to most substrates and building materials; it will even stick to porous and rough substrates – like concrete and OSB – without the need for a primer!

This tape has a slight perm rating, making it breathable so as to prevent condensation buildup, rot and mold.

The black, single-sided, high-performance acrylic adhesive tape is the optimal solution for permanent windtight and driving-rain proof sealing of window and door frames in solid construction on the outside. The tape can also be used to seal between slab and base joint without the use of a primer. Is has a felt-like texture, making application easy on the hands; this feature also aids in creating a seamless air and water barrier when applied to itself or WRB’s like Majvest.

Fentrim F comes available in various widths which you can find here:  6″ / 9″ / 12″

For a pre-folded version of this tape, try Fentrim IS 2.


Width: 4″

Length: 82′


Additional Information


Single Roll, Case – 6 Rolls

3 reviews for SIGA Fentrim F – 4″

  1. 5 out of 5

    (verified owner)

    This is a great product. If you are used to using Wigluv tape and adding dockskin, you will like using this product even better which removes that step. In my application I used this as a redundant air seal at the joint from the exterior wall where it it meets the brick foundation wall. The adhesive is very tacky and sticks to clean masonry without any trouble. The ease of application is furthered with the split release paper which in my opinion is a must have!! Highly recommend!!

  2. 5 out of 5

    (verified owner)

    Great Product! The carpenters love working with it.

  3. 5 out of 5

    (verified owner)

    I love the Fentrim tape. It sticks to everything. The fleecy finish makes it really user friendly to install. The surface is really tough and has held up to months of job site abuse.

Add a review

Your email address will not be published. Required fields are marked *

Technical Data_Fentrim F

Safety Data_Fentrim F