Mastic & Foams | Astro INTU Mastic

>Trade Name: Astro INTU Mastic

Intumescent Acoustic Mastic

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View All Mastic & Foam Products Download The Mastic & Foam Brochure
Astro INTU Fire Mastic
Intumescent Acoustic Mastic
Intumescent Mastic
INTU Mastic Foil Packs
Astro INTU Mastic foil packs
foil pack Mastic
full size product image from Astroflame

Astro INTU Mastic
Intumescent Acoustic Mastic
Fire Rated Mastic
Astro INTU Mastic in foil packs
INTU Mastic in foil packs
Mastic foil packs

> Quick Overview


Telephone Astroflame 01329 844 500

Email Astroflame

PDF Data Sheets Download PDF Data Sheets

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For in-stock items orders received before 2pm (Monday-Friday) are generally dispatched for delivery on the following working day (Monday-Friday).

> Product Description

CE Certification for Mastic

Astro Intu Mastic is a water based acrylic sealant used to reinstate the fire resistance of wall and floor constructions in linear joints and where apertures are penetrated by multiple services. Astro Intu Mastic Fire Resistant Sealant has been developed utilising specialist polymer technologies allowing it to be tested and Certified to internationally recognised standards, including CE marking and UL Listings. Astro Intu Mastic Fire Resistant has been tested and Certified as part the Astroflame Fire Stopping range. The Astro Intu Mastic system can be installed across a variety services and substrates including,

*For specific details please refer to the test certification.

> Properties

General Characteristics Inspection Method Value
Product Data (uncured)
Density (S.G) ASTM D792:13 1.63
Appearance Paste, matt finish
Resistance to flow ISO 7390 : 2003 Pass
Product Data (after curing)
Hardness Shore A ISO 7619-1 : 2010 63/39
Movement Capability 7.5%
Operating Temperature °C -5 to 40
Loss Mass of Mass on Heating ISO 3451-1 (Method A) 68.34
Flexibility - Bend Test ISO 1519 Pass
Conditioning EOTA TR024 Type X

> Product Availability

The Astro intu Mastic Comes in Three Colours - White, Brown & Grey in Both 310ml Cartridge & 600ml Foils

Product Code Product Description Size
AFIM Astro Intu Mastic White 310ml
AFIMB Astro Intu Mastic Brown 310ml
AFIMG Astro Intu Mastic Grey 310ml
AFIMWFOIL Astro Intu Mastic White - Foil 600ml

600ml Foils in a Brown or Grey colour available P.O.A

> To Order & Specify

Please contact us and quote the following information - Please quote- Quantity / Product Ref / Trade name / Size
Typical wording- 10 / AFIM / Astro Intu Mastic / 310ml

>> Tel: 01329 844 500 or >> Email:

> Installation

We have technical representatives who provide assistance in the selection and specification of the products on this site and should be consulted for exact installation and product suitability. Ensure an early engagement with ourselves, designers, main contractor and specialist installers before any installation. Other trades and/or manufacturers may need to be consulted. For in-depth information, specification and technical advice please call our Head Office on tel 01329 844 500 or email

> Maintenance

All interested parties, designer, specifier, main contractor and specialist installers should provide access to allow the fire stopping seals to be regularly inspected and maintained, as well as records kept of such maintenance at minimum periods of 12 months, as required by the Regulatory Reform Order, and repaired if necessary. Reference should be made to ASFP TGD 17 – Code of Practice for the Installation and Inspection of Fire Stopping.

> Competency

It is vital that those entrusted to design or install a fire stopping product have the necessary levels of competence to undertake the task professionally and thoroughly. The level of competency required will be commensurate with the expected complexity of the building. All designers must eliminate, reduce or control foreseeable risks that may arise during installation, construction or maintenance when preparing or modifying designs. Clients should ensure that the principal designer and principal contractor carry out their duties under CDM regulations. The ASFP foundation course in passive fire protection provides essential knowledge as part of demonstrating competency and understanding in this key fire protection specialism.

> Additional Notes

Please refer to the ETA/UL-EU sheet for fields of application for this product. For further information on installation requirements please refer to the manufacturer of the services and the wall/floor specification to ensure the compatibility of this product, if in doubt please contact the technical team with services and wall/floor specification on: tel 01329 844 500 or email

> Health and Safety

The product does not present any known health hazards during or after installation. Normal good industrial and personal hygiene practices should be observed. For further information on health and safety requirements please contact the technical team on: tel 01329 844 500 or email

> Data Sheet Downloads

Download and review the following available data sheets for this product.

Key Information:
  • PDS's are Product Data Sheets
  • SDS's are Safety Data Sheets
  • TDS's are Technical Data Sheets
  • INT's are Install Data Sheets
  • VID's are Video Files
  • DoP's are Declaration of Performance
  • CoC's are Certificate of Constancy of Performance
  • ETA's are European Technical Assessment Sheet
  • CF's are Certifire Certificates
  • UL Documentation are UL - EU Certificate

> Delivery/Returns

For in-stock items orders received before 2pm (Monday-Friday) are generally dispatched for delivery on the following working day (Monday-Friday). All dates quoted for despatch are estimates only and are not guaranteed. We will endeavour to meet these dates but shall have no liability for any delay in despatch or delivery or any damage or loss occasioned thereby. We may deliver products pursuant to any order by instalments. If we are unable to deliver the goods for any reason,you will be contacted and you will not be obliged to pay for the goods which have not been delivered, you also have the option to cancel the goods that have been delivered, however we shall not be liable for any loss of income or profit which may have been caused by the delay or non delivery of goods.

For information about our returns policy please click here.

> Ask a Question

If you've got a question about this product or need some technical help get in touch with the Astroflame sales or technical team to discuss your requirements today. We are open Monday to Friday 8:00am to 5:30pm. You can always contact us on the following:

T: 01329 844 500


Web Page Last Modified: 25th January 2024

Data Sheets Downloads

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