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Astroflame Intumescent Acoustic Mastic

2.89 ex VAT
3.47 inc VAT
Product Overview
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
  • NHBC type approval
  • 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
Technical Data

This is the technical data for the Astroflame Intumescent Acoustic Mastic.

Volume 310ml

Data Sheets

FAQs (1)

Q. Please would you tell me what distance one tube of it covers, so that I can work out how many tubes I need to order

A. 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 meters per tube
9mm x 6mm = 5.8 meters per tube
18mm x 12mm = 3 meters per tube

Pricing & Availability

Model Stock Levels Price Weight
Product Code: AFIM/WHITE
Stock Level:
More than 20 in stock

2.89 ex VAT

3.47 inc VAT

Product Code: AFIM/BROWN
Stock Level:
More than 20 in stock

2.89 ex VAT

3.47 inc VAT

Product Code: AFIM/GREY
Stock Level:
12 in stock

2.89 ex VAT

3.47 inc VAT


Customer Reviews

2 customers have rated this product and it has an overall rating of 4.5 out of 5

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

4 / 5 Stars

Reviewed by: DS

Does what it says on the tin! Good Value

Published on: 6th January 2017

5 / 5 Stars

Reviewed by: LM

works and handles well

Published on: 25th July 2016

Delivery Options

The following delivery options are available on this product.

Economy Delivery

Delivered in 2-3 working days by Royal Mail from 3.90 ex VAT - More info

Next Day Delivery

Delivered the next working day by UK Mail from 6.50 ex VAT - More info

For delivery on order within

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