SIGA Fentrim 230 Grey 15/85
(Formerly: Fentrim IS 2 (100mm))
SIGA Fentrim 230 Grey 15/85 is the complete window and door sill-flashing tape you’ve been waiting for. This version of Fentrim has a small pre-fold to help with flashing inset windows and window frame-to-flange details.
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!
SIGA Fentrim 230 Grey 15/85 has a slight perm rating, making it breathable so as to prevent condensation buildup, rot and mold.
The grey, 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. 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.
SIGA Fentrim 230 Grey 15/85 comes pre-folded, making application between sill and window easy and efficient. Available folded in the size 75mm (15/60mm), as well as 100mm (15/85mm).
For a non pre-folded version of this tape, try Fentrim 430 Grey – 4″,6″ and 9″.
Length: 82′





Excellent Product Ideal Tape for window and door flanges
Tape works excellent on windows with applied nail flanges. The tape rides up on the window sealing the window flange to window connection.
Great tape. Makes wrapping tape onto the window much easier