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Nullifire FS703 Intusil | Fire-Resistant Sealants
Nullifire FS703 Intusil | Fire-Resistant Sealants

Nullifire FS703 Intusil Fire Resistant Silicone Sealant

340169
NUL3597

Fire-stopping sealant designed for aggressive exterior use on high-sheen surfaces (glass, aluminium) and in high-movement joints for up to 50% movement. Suitable to fire seal joints in
compartment walls and floors such as masonry to masonry, masonry to timber, masonry to steel - see the description below for a list of suitable surfaces and substrates.

  • 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
  • 20% Movement tested
  • New: Now available in Black
Colour
Size
£126.98(incl. VAT)
£105.82(ex. VAT)
Quantity
Please choose your colour
Available for Delivery (See Delivery Options Below)

questions 1 question about the product
Description

Nullifire FS703 Intusil Fire Resistant Silicone Sealant  provides a fire-stopping seal around high movement joints and is ideal for use in external aggressive environments, with high adhesion that applies to high-sheen surfaces like glass and aluminium. The mastic insulates and resists fire for up to 240 minutes with a water-resistant seal that is unaffected by moisture, offering a movement capability of up to 50%.

Intusil cures at a rate of 1 mm per day and cannot be readily over-coated.

Sealing gaps and cracks in fire barriers and around services can be critical to slowing the spread of smoke and fire, saving lives with more time for evacuation. Use FS703 Intusil in the following applications:

  • Block to block
  • Block to steel
  • Concrete to timber
  • Block to concrete
  • Plasterboard heads
  • Floor movement seals
  • Head of wall movement seals
  • Slab edge seals
  • Service movement seals
  • Static linear joints (masonry to masonry/rigid wall/rigid floor/flexible wall)
  • Window & door joints (masonry to timber/steel)
  • Movement joints (20%)



Installation


  • 2:1 ratio wall 240 minutes integrity; 240 minutes insulation
  • 2:1 ratio floor 240 minutes integrity; 90 minutes insulation
  • 3 mm over 100 mm Firetherm Backer 240 minutes integrity; 240 minutes insulation; 30% movement
  • 10mm angled fillet to Intubatt edges or full depth plus fillet around services



Maximum Openings


  • Linear gaps up to 50 mm x infinite length



Coverage


  • 10 mm wide seal - 3.25 m approx.
  • 15 mm wide seal - 1.35 m approx.
  • 20 mm wide seal - 0.78 m approx



Fire Testing


  • Tested at Exova BM Trada to BS EN 1366-4, BS EN 1366-3, BS 476/20/22
  • Third party accredited by Exova Warrington Fire, certificate number CF 5340



IMPORTANT FIRE PRODUCTS NOTICE:  The information displayed on this website should be used as a guide ONLY and  our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with  Condition 8 of the Terms and Conditions .  We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.

Product Details
3597-968184

Data sheet

Interior / Exterior Use
Exterior Use
Single, Two or Three Pack
Single
Base Type
Silicone
Suitable For Use On
Masonry
Suitable For Use On
Concrete
Suitable For Use On
Aluminium
Suitable For Use On
Glass
Suitable For Use On
Plasterboard
Suitable For Use On
Linear Joints
Suitable For Use On
Block
Application Method
Sealant Gun
Product Usage Type
Sealer
Colour Family
Grey
Colour Family
Black
Colour Family
White
Fire Rating
240 Minutes
Attachments
Download


Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

Questions

Question about the product

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(read)
questions Noel Sigamoney on 2024-01-12 07:33:22
Question: 

i am wondering if this product (FS703) is compatible with 'Y' wall/RCM board?

Answer from Rawlins’ Technical Team:

The testing data shows this product is suitable for application to the following substrates - AAC, Concrete, Steel and Timber substrates.

IMPORTANT SHIPPING & DELIVERY INFORMATION

Nullifire FS703 Intusil Fire Resistant Silicone Sealant is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT


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