Astro Penetration Seal Coat is a thicker formulation, for brush application, to
coat plain Stone wool as it is being installed by the user: it can also be be applied to
insulation already in place on the services, adding to the fire resistance of the seal.

It prevents the passage of fire, smoke, air and sound between fire rated compartments and has been tested in block wall, concrete, masonry, Plasterboard partition, composite panel, durasteel wall and concrete floors.

Astro PS Coat is a water-based, acrylic, ablative coating with excellent fire, water,
air permeability and elastomeric properties.

At normal temperatures PS Coating remains flexible to permit thermal and mechanical movement of services and the building structure.

aSTRO PS Coat has been tested to EN1366-3 EI30,EI60 when applied to pre-fitted stone fibre of 140kg/m3 density and 50 to 150mm thickness.

Specification Details for Astro PS Coat. (Fire-Resistant Internal Wall Finishes)

Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that astroflame fireseals ltd is consulted before specifying.

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