Nullifire FS703 Fire Resistant Silicone Sealant

FS703 is a low modulus, neutral cure, silicone sealant, suitable for linear gaps sealing in order to reinstate the fire performance in compartment walls & floors. Provides up to 4 hours fire protection at internal and external building gaps and movement joints.

FS703 is suitable to fire seal joints in compartment walls and floors:

Static linear joints (masonry to masonry/rigid wall/rigid floor/flexible wall)
Window & door joints (masonry to timber/steel) Movement joints (20%)

Do not use around CPVC pipes; for this specific application, please use FS719 HP Blue for CPVC. If used around Pegler X-Press Carbon Steel pipes, the pipe manufacturer should be consulted, and their recommendations followed.

Key Features:

Up to 4 hours fire resistance – Tested to EN 1366-4.
Tested in gaps 10 – 220 mm.
Ideal for joints in flexible walls, rigid walls & floors, windows & door frames.
Airtight up to 600 Pa.
Superior elasticity.
Excellent tooling properties.
UV & weather resistance.
Minus 20% movement tested.

Base: Silicone

Curing: RTV Curing

Viscosity: Gun applied

Packaging: 310 ml cartridges and 600ml foils in white. Grey and Back also available to order subject to minimum order quantities.