Fentrim 430 Grey - 6"
Fentrim 430 Grey – 6″ 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. You can even apply Fentrim in cold weather conditions!
Fentrim 430 Grey – 6″ tape 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*. 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 SIGA Majvest or SIGA Majvest SA.
Fentrim 430 Grey comes available in various widths which you can find here: 4″ / 9″
For a pre-folded version of this tape for inset European Windows or Flanged Windows try Fentrim 230.
Width: 6″
Length: 82′
*This tape is not designed for use in permanently UV exposed applications.







Stuck to OSB and block amazing. So much easier than brush on sealers