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Astroflame Intumescent Acoustic Mastic

close-up of the top of a tube of astroflame intumescent acoustic mastic showing the white nozzle and cap
Four tubes of astroflame intumescent acoustic mastic with pointed nozzles shown together on a plain background close-up of the top of a tube of astroflame intumescent acoustic mastic showing the white nozzle and cap top view of astroflame intumescent acoustic mastic tube with nozzle attached for application Close up of brown astroflame intumescent acoustic mastic tube showing the cap and part of the label Close-up of the open tube of astroflame intumescent acoustic mastic showing the inside in grey color
4.7 out of 5 stars

20+ In Stock

Estimated dispatch: Monday 8th June

£4.99 inc VAT

£4.16 ex VAT

Standard Delivery

Will usually be delivered in 2-3 working days

£4.20 inc VAT

Next Day Delivery

Will usually be delivered the next working day

£7.00 inc VAT

Astroflame intumescent acoustic mastic is ideally suited for sealing and maintaining a structures fire and acoustic integrity when penetrating with pipes and cables. Astroflame intumescent mastic is designed for sealing gaps around fire doors, sealing joints and irregular holes.

  • 240 minute fire rated mastic sealant
  • Independently tested to BS 476-20 & EN 1366-4
  • Acoustic tests to BS EN ISO 140-3
  • Available in three colours
  • Suitable for sealing:
    • Gaps around fire doors
    • Gaps around window frames
    • Gaps around cable and pipe penetrations
    • Gaps in low movement joints up to 25mm wide
  • Supplied in 310ml tubes
  • For internal use only
Customer Reviews

Customer Reviews (6)

4.7 out of 5 stars

Reviews by Real Customers

All of our product reviews are written by real customers that have purchased this product from us and are published without modification.

Rating: 5 / 5

Reviewed by

D T

Published on

24th July 2023

Does as it should at a good price

Applies to option(s): White

Rating: 5 / 5

Reviewed by

P R

Published on

28th June 2021

Great

Applies to option(s): White

Rating: 5 / 5

Reviewed by

Anonymous

Published on

12th September 2018

So easy to use, why take chances!

Applies to option(s): White

Rating: 4 / 5

Reviewed by

Anonymous

Published on

25th September 2017

Did what the product was designed for seal potential gaps for fire to transfer to the next room etc.

Applies to option(s): White

Rating: 4 / 5

Reviewed by

Anonymous

Published on

6th January 2017

Does what it says on the tin! Good Value

Applies to option(s): White

FAQs

FAQs (1)

What distance does one tube of the Astroflame Intumescent Accoustic Mastic cover?

The amount of coverage does depend on the size of gap.

Please find below approximate distances based on different size gaps:

  • 6mm x 6mm = 8.6 metres per tube
  • 9mm x 6mm = 5.8 metres per tube
  • 18mm x 12mm = 3 metres per tube
Technical Data

Technical Data

Product Code AFIM/WHITE
Brand Astroflame
Colour White
Compliance EN 1366-4
EN 1366-3
EN 10140-2
EN 1026
EN 13501-2
Approvals & Markings CE Marked
Environmental Suitability Indoors
Fire Rating 240 Minutes
Material Intumescent Material
Rigid Plastic Casing
Recyclable Not Recyclable
Suitability Concrete
Masonry
Plasterboard
Timber
Dimensions (Unit)
  • Height: 230mm
  • Width: 50mm
  • Depth: 50mm
Weight 350g
Datasheets
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