Mastic & Foams | Astro HPE Sealant

>Trade Name: Astro HPE Sealant

High Pressure Expansion Sealant

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Astro HPE Sealant
Astro HPE Sealant Cartridges
Astro HPE Sealant Pack
High Pressure Expansion Sealant Foil pack
High Pressure Expansion Sealant Foil packs
High Pressure Expansion Sealant Foil in a box
full size product image from Astroflame

Single HPE Sealant Cartridge
HPE Sealant Cartridges
Fire Rated Sealant in a box
Fire Rated Sealant foil versions
Fire Rated Sealant foil packs
HPE Sealant Foil in a box

> 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

HPE CE Certification

Astro HPE Sealant is an acrylic based graphite sealant used to reinstate the fire resistance performance of wall and floor constructions where they have been provided for the penetration of single or multiple services, to form penetration seals where gaps are present.

Astro HPE Sealant expands upon contact with heat, also known as intumescent or reactive material Astro HPE Sealant is supplied within 310ml cartridges and 600ml foils. The sealant is gunned or trowelled into the annular space in or between the separating element/elements to a specific depth utilising backing materials.

*For specific details please refer to the test certification.

> Properties

Description Result Test Standards
Density Ca. 1.23 - 1.33g/cm3 ISO 2811-1:2011
Shore Hardness A 68 ISO 7619-1:2010
Colour Grey  
Application Temperature +5 °C to 35 °C  
Expansion Onset Temperature Ca. 180 °C  
Expansion Up to 20 times EOTA TR 024
Expansion Pressure 7 bar EOTA TR 024
Skin Time 15 minutes @ 25 °C/ 50%RH EN1366-3
Cure Time 1.7mm per 24hrs  
Shelf Life 18 months unopened  
pH 6 - 9  
Fire Resistance EI 120 EN1366-3 and EN1366-4
Insulation 120 EN 1366-3
Air Permeability 600Pa - 100Pa 11.1/16.7 m3/h/m2 EN1026
Classification EN 13501-2, ISO 11600  
Acoustics Rw (C;Ctr) : 52 (-1;-6) dB EN ISO 10140-2:2010
Durability Services Type ZЕ, intended for use in internal conditions  
BREEAM International Compliant GN22: BREEAM Recognised Schemes for VOC Emissions from Building Products
Lubrizol Test Method Pass NSF Refernece: P0128, P3111, P3147
Expected Shelf Life At least 12 months Stored in accordance with packaging instructions

> Product Availability

Astro HPE Sealant is supplied in rigid 310ml cartridge format for use with an applicator gun.

Product Code Product Description Colour Size
AFHPESG Astro HPE Sealant Grey only 310ml cartridge
AFHPESGFOIL Astro HPE Sealant - Foil Grey only 600ml

> To Order & Specify

Please contact us and quote the following information - Quantity / Product Code / Product Description / size
Typical wording- 10 / AFHPESG / Astro HPE Sealant / 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: 12th February 2024

Data Sheets Downloads

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