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BG, Luceco & Masterplug orders over £50 qualify for free UK mainland delivery
BG, Luceco & Masterplug orders over £50 qualify for free UK mainland delivery

Astroflame High Pressure Expanding Sealant

Original price £68.22 - Original price £130.45
Original price
£68.22 - £130.45
Current price £68.22
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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.


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