Nullifire FS703 "Fire Rated" Silicone Sealant

SKU
FS703
Grouped product items
Product Name Qty
Nullifire FS703 "Fire Rated" Silicone Sealant - Grey
£3.26 £2.72

Colours: White & Grey

Size: 310ml

Nullifire M703 (or FS703) is a single-part alkoxy-based fire resistant, elastomeric, neutral cure silicone sealant. The M703 allows up to 50% movement in joints and provides up to 5 hours fire protection.

Colours: White & Grey

Size: 310ml

Nullifire M703 (or FS703) is a single-part alkoxy-based fire resistant, elastomeric, neutral cure silicone sealant. The M703 allows up to 50% movement in joints and provides up to 5 hours fire protection.
 
Benefits
• Up to 5 hours fire resistance
• Suitable for gaps up to 50mm wide
• No insulative backing material required for fire performance, PE backing rod for depth gauge only
• Excellent tool ability and low slump characteristics
• Width to depth ration of 2:1 (10mm wide 5mm deep)
• Weather and UV resistant
• Smoke, gas and hermetically air tight
• Can be used for external applications
• Water resistant

Applications
• Expansion joints in compartment walls and floors
• Sealing in and around lightweight flexible partitioning
• Gaps between timber and steel doors and window frames and the substrate
• Decorative joints
• Sealing around service penetration, steel pipes, steel ducts, duct trays, cables and cable trays
• Can be used for external joint applications

Testing and certification
Fire performance
• Tested in accordance with BS EN 1366-4
• Up to 5 hours fire resistance
• Classification EN 13501

 Acoustic performance
• Tested in accordance with EN ISO 140-3

 Air permeability performance
• Tested in accordance with EN 1026

Application Instructions for Nullifire M703 Silicone Sealant

Tools/Products Required:
Nullifire M703 Silicone Sealant (FS703)
Caulking Gun.
Silicone Smoother + Water.
Backer Rod. 

Step 1 – Cleaning Surfaces: 
Surfaces need to be clean, dry, sound and free from contamination. NOTE: Soap or residue will stop the silicone from adhering.

Step 2 – Preparing Surfaces: 
Where gaps are 6mm or wider, insert a joint of closed cell Polyethylene foam backer rod, approximately 25% over sized, allowing for a seal depth of at least 10mm. If necessary you can mask around the perimeter allowing you to remove any messy silicone after application.

Step 3 – Preparing Caulking Gun: 
Insert Nullifire M703 sealant cartridge into the skeleton gun. Snip the nozzle at a 45 degree angle using a sharp blade as any ragged edges will reflect in your silicone. Don’t snip the nozzle too large, this will make it very difficultly and messy when applying.

Step 4 – Applying Sealant: 
Pressure the gun trigger so that a smooth constant bead of silicone comes out, adjust your speed of travel to ensure a uniform bead goes down. Remember not to put too much silicone down as it will spread as you smooth it.

Step 6 – Smoothing: 
Wet the silicone smoothers and tool to get the right shape, adjusting any mistakes made when applying the sealant. Now is the time to also remove any masking tape used.

Joint Width:
Where gaps are less than 6mm wide, apply a bead of Nullifire M703 sealant and tool to form a triangular fillet, achieving a ‘bite’ of at least 6mm onto non-porous surfaces ( PPC, aluminium etc) and 10mm onto porous surfaces (brickwork etc).
Minimum 6mm.
Maximum 25mm.

Joint Depth: 
Depth ratio (within above min/max restrictions) 2:1 butt joints. 1:1 lap joints.
 

More Information
Brand Nullifire
MPN No
EPDM Width N/A
ean No
Clamp Finish No
Interior or Exterior No
Is New No
Filter By No
Handrail Length N/A
Length N/A
Colour N/A
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Delivery Information - What does your delivery option mean?

All our UK Mainland orders are dispatched on a Next Day Delivery via our courier service and you can qualify for FREE delivery when you spend over £75.00 ex VAT with us

Please note that orders placed on a Friday after 11AM for next day delivery will be dispatched on the following Monday for delivery on Tuesday.

Orders placed prior to a Bank Holiday will be delivered two days after the Bank Holiday.

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Saturday Deliveries

Please note Saturday deliveries do not include orders that are made on Saturdays. Saturday orders should be made prior to Friday 11am

Delivery OptionsPriceTiming
Next Day Delivery £12.99 Monday - Friday, excluding public holidays. Order before 2PM to guarantee delivery the next working day.
Next Day Delivery (Before 12) £19.99 Monday - Friday, excluding public holidays. Order before 2PM to guarantee delivery the next working day. Items will be delivered between 8AM and 12PM.
Saturday Delivery (Before 12) £19.99 Saturday between 8AM and 12PM
2-5 Day Delivery (Stock Dependant) £4.49 Monday - Friday, excluding public holidays. 
FREE Delivery 2-5 Working Days - Stock Dependant £0.00 Monday - Friday, excluding public holidays.
Please Note
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  • Working days do not include Weekends or Bank holidays
  • For all enquiries ring 01484 411357 / direct@dortech.co.uk
BACS & Purchase Orders
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Returns

If you need to return a product within 30 days, we are happy to refund the product provided it is returned, as sold, with all the original packaging, tags, labels and accessories.

Prior to returning any goods for any reason, please contact us on 01484 411357 to inform us, of the reason for the return and to obtain a Returns Authorisation Number.

Return goods should be sent to "The Returns Department, Dortech Direct, Unit 14 Fieldhouse Park, Old Fieldhouse Lane, Huddersfield, HD2 1FA" clearly quoting one of the following -  Account Number, Order Number or Return Authorisation Number.

Any goods returned within 30 days as 'unwanted' or 'incorrectly ordered' will only be accepted at the discretion of the company with their original packaging

Refunds

All refunds will be issued to the payment method used on your original order. Please allow 1-3 working days for the payment to process once the refund has been received.

FAQ

Is there a re-stocking fee?

Unfortunately from time to time we may need to charge a re-stocking fee. This is a charge passed on to us by our suppliers. While every effort will be made to avoid this this charge in some cases it is un-avoidable.

I've sent my package, how long will the refund take?

We aim to make the returns process as quick as possible, but please allow up to 10 working days for your refund to be processed. If you haven't received any information after this time, please get in touch with one of our team.

Returns

If you need to return a product within 30 days, we are happy to refund the product provided it is returned, as sold, with all the original packaging, tags, labels and accessories.

Prior to returning any goods for any reason, please contact us on 01484 411357 to inform us, of the reason for the return and to obtain a Returns Authorisation Number.

Return goods should be sent to "The Returns Department, Dortech Direct, Unit 14 Fieldhouse Park, Old Fieldhouse Lane, Huddersfield, HD2 1FA" clearly quoting one of the following -  Account Number, Order Number or Return Authorisation Number.

Any goods returned within 30 days as 'unwanted' or 'incorrectly ordered' will only be accepted at the discretion of the company with their original packaging

Refunds

All refunds will be issued to the payment method used on your original order. Please allow 1-3 working days for the payment to process once the refund has been received.

FAQ

Is there a re-stocking fee?

Unfortunately from time to time we may need to charge a re-stocking fee. This is a charge passed on to us by our suppliers. While every effort will be made to avoid this this charge in some cases it is un-avoidable.

I've sent my package, how long will the refund take?

We aim to make the returns process as quick as possible, but please allow up to 10 working days for your refund to be processed. If you haven't received any information after this time, please get in touch with one of our team.

YOUR LOYALTY REWARDS In recognition of your valued business, 1.5% of the value of this order will be added to your loyalty rewards which can be used when you make another purchase through this website.

Rewards can only be added where accounts have been created

Should you require assistance at any stage, please contact our customer help-desk through email at direct@dortech.co.uk or by phone on 01484 411 357.

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