Pay with American ExpressPay with MastercardPay with MaestroPay with VisaPay with PayPal Payments Secured by WorldPay
  Return to main site  |   Home  |   About Us  |   Search  |   View Cart   |  Enquiry Form  

  Home > Mastics & Foams

Intumescent Sealant - High Pressure Expanding type.
Intumescent Sealant - High Pressure Expanding type. Intumescent Sealant - High Pressure Expanding type. Intumescent Sealant - High Pressure Expanding type.

Intumescent High Pressure Expansion Sealant - CE Marked

Key Points:

  • Astro HPE Sealant
  • Suitable for use in rigid wall and floors, flexible wall and within batts wall and floor.
  • Large service openings up to 300 x 100mm.
  • Tested in accordance with EN 1366-3 : 2009.
  • Metallic Pipes, Cables, Cable Bunches (inc Telecommunication), Cable Trays and Cable Ladders.
  • Combustible Pipes up to 125mm dia - PVC, PE, PP, ABS and PEX.
  • Can be used on various pipe insulation types
  • Causes no known effects to plastic pipes, plastic cables, sheathing or metallic components.
  • Easy clean up with water and is odourless.
  • Smoke, gas and air tight.
  • High Expansion Ratio.
  • Mould Resistant.

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


Test Standards
Ca. 1.30 - 1.40g/cm3
ISO 2811-1:2011
Shore Hardness A
ISO 7619-1:2010
Application Temperature
+5 °C to 35 °C
Expansion Onset Temperature
Ca. 180 °C
Up to 20 times
Shelf Life

18 months in unopened

Fire Resistance
EI 120
Air Permeability
600Pa - 100Pa 11.1/16.7 m3/h/m2
EN 13501-2
Certifire 3rd Party Accreditation
CF 5239
Available in
Rw (C;Ctr) : 52 (-1;-6) dB
EN ISO 10140-2:2010
Durability Services
Type Z1, intended for use in internal conditions

Certification/Fire Test Reports:

CE InformationCE Marked Documents
'DoP's are 'Declaration of Performance'
'CoC's are 'Certificate of Constancy of Performance'
'TDS' are 'Technical Data Sheet'

DoP Astro HPE Sealant

CoC Astro HPE Sealant

HPE Astro Sealant TDS

UL Documentation

Available in 310ml cartridge for standard application guns. Grey colour only but can be painted.


Our Price: £4.79

Prices include VAT.


Related Products
Fire & Acoustic Rated Intumescent Mastic - CE MarkedFire & Acoustic Rated Intumescent Mastic - CE Marked
Mastic with fire resistance EN 1366-3 : 2009 and EN 1366-4 : 2006 | Acoustic Isolation to EN 10140 to 63dB | Interior or exterior use | Long shelf life | Brown, Grey or Off White
Intumescent Fire Rated PillowsIntumescent Fire Rated Pillows
Up to 4 Hr Rated | For wall floor & ceiling penetrations | Fire Pillows tested to BS476: Part 20: 1987 | 4 stock sizes | Removable for re-use | Dustproof.
Fire Rated Expanding FoamFire Rated Expanding Foam
Up to 4 Hour Fire Rating | Tested in accordance with EN1366-4 : 1999 | 750ml can expands up to 40l | Self curing
Fire Stop BlockFire Stop Block
A compressible firestop seal for service penetration openings or trunking. An alternative to intumescent pillows.
Intumescent Expansion Joint Seals - 2 Hour RatedIntumescent Expansion Joint Seals - 2 Hour Rated
Fire Rated Expansion Joint Seal / Linear Joint Seal | up to 150mm gap size | Tested in accordance with BS 476 Part 20: 1987.

Customer Reviews
Write an online review and share your thoughts with other shoppers!

   RapidSSL Site Seal
« Back

  Contact us on 01329 841 416 for all enquiries Site Map  |  Terms & Conditions