Nullifire FS703 Fire Resistant Silicone Sealant White 310ml

About this product

Product code: FS703

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.

FS703 is designed to reinstate the fire performance of compartment walls and floors, by fire sealing linear joints left between different substrates.

FS703 Silicone is tested for many different applications and substrates:

Static linear joints (masonry to masonry / rigid wall / rigid floor / flexible wall)

Movement joints (20%) with FJ203 Fire Rope

Typical areas of use include: health and leisure facilities, schools, universities, modular construction, commercial buildings, hospitals, retail and industrial units, train stations, nuclear power plants, etc...

Up to 4 hours fire resistance - Tested to EN 1366-4

Tested in gaps 10 - 220mm

Ideal for joints in flexible walls, rigid walls & floors

Air pressure tested up to 600 Pa

Superior elasticity

Excellent tooling properties

UV & weather resistance

20% movement tested (together with FJ203 Fire Rope)

F-EXT-INT-CC-25LM

Date of manufacture: May 2025

Expiry date: May 2026

*Packaging on these products may be damaged or showing signs of wear and tear and may be reboxed but all products are in good working condition. These products are non-returnable and non-refundable and once they are gone they are gone.