Astro High Pressure Expansion (HPE) Sealant

Astro High Pressure Expansion Sealant is an acrylic-based graphite sealant designed to restore the fire resistance of wall and floor constructions where service penetrations pass through.

It is used to create penetration seals around single or multiple services.

When exposed to heat, the sealant expands to form an intumescent barrier that helps resist the spread of fire.

It is suitable for use in rigid and flexible walls and floors, including batts.

Astro HPE Sealant can be applied around metallic pipes, cables, trays and ladders, as well as combustible pipes up to 125mm diameter, subject to certification.

Supplied in 310ml cartridges and 600ml foils, it can be applied by gunning or trowelling into the annular space to a specified depth using suitable backing materials.

It is also water clean-up, odourless, smoke, gas and airtight, with no adverse effects on pipes, cables or metals.

• Acrylic-based graphite expansion sealant

• Designed for penetration seals in walls and floors

• Expands when exposed to heat

• Suitable for rigid and flexible walls and floors, including batts

• For metallic pipes, cables, trays and ladders

• For combustible pipes up to 125mm diameter, subject to certification

• Handles openings up to 300 x 100mm

• CE and UKCA marked

• EN 1366-3:2009 tested

• UL EU accredited

• Water clean-up and odourless

• Smoke, gas and airtight

• High expansion ratio

• Mould resistant