Astroflame High Pressure Expanding Sealant
UK Stock
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Genuine Brand
Description
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.
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 |
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Astroflame High Pressure Expanding Sealant
£68.22
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UK Business
UK Standards Compliant
Company No:
08356448
VAT No:
GB436489852
Frequently Asked Questions
Yes — orders placed before 12pm Monday–Friday are dispatched same day on a tracked next-day service. Delivery is free on orders over £100; standard delivery is £3.95.
Our switches, sockets, consumer units and fixed-wiring accessories meet BS 7671 (18th Edition) requirements. Each product page lists the relevant British Standards in the specifications. Notifiable installation work should be carried out by a qualified electrician under Part P of the Building Regulations.
Bathroom Zone 1 needs IP65 or higher; Zone 2 needs at least IP44. Outdoor / exposed installations should be IP65 or above. Each product page lists the IP rating in the specifications; if it is not listed, contact our team and we will confirm before you order.
Yes — registered trade customers receive tiered discounts (up to 40%), VAT invoicing, and 30-day account terms. Apply via the Trade Account page; most applications are approved within one working day.
Unopened items can be returned within 14 days for a full refund. Faulty goods are covered by the manufacturer warranty (typically 1–5 years depending on brand). Email support@kenttraders.co.uk to start a return.