FJ400 Intuspan Intumescent Joint Filler

FJ400 Intuspan is an extremely compressable intumescent joint filler, made of compressible foam strip layered with high expansion intumescent material.

Usage/purpose

FJ400 Intuspan is used to reinstate the performance of fire compartment lines, both walls and floors, where construction joints require a physical movement seal and a specific fire rating.

FJ400 has been tested in linear joints from 25mm to 100mm gap width, and is suitable for use between horizontal and vertical elements.

FJ400 has 60% physical movement capability (compress and return). It is tolerant of very large movement and is used in areas where standard mastic joints are not suitable, such as large gaps over 35mm, acoustic isolation joints and areas subject to regular cycles of expansion and contraction or vibration, in compression, where reliability is vital.

In addition, FJ400 is particularly suitable for buildings being designed for earthquake zones or military buildings designed to withstand high ground movement shockwaves.