Astroflame Passive Fire Protection Products

Trade Name: Astro PS Coat

Penetration Seal Coating.

CE Marked and UL-EU Listed

Fire Resistance Testing to EN 1366-3 EI30, E60

Fire Classification to EN 13501-2

Air Permeability testing to EN 1026 to 600Pa

Acoustic Isolation testing to EN 10140 to 51dB

Remains flexible between -5°c to +70°c

Easy to use fibre free coating

Suitable for large openings in walls and floors with additional supports.

Life expectancy of over 25 years

Flexible and water resistant

Contributes to Green Building

Flexibility and LOI tested –ASTM D522 & ISO 4589-2:1996

Can be spray, brush or trowel applied

Tested in Block Wall, Concrete, Masonry and Plasterboard Partition

Allows user to choose the stone wool substrate.
(Min requirement equal or greater than 140kg m3 min 50mm thick).

Fire and smoke seal up to 60 mins

Used seal penetration seals with on-site coating applications

Fire Protection Certification Logos

Astro PS Coat at Astroflame

View a range of styles

>> See more : Additional product images

>> Call us to order: 01329 844 500

>> Email us to order:

DescriptionAblative Coating - Ablative Coating - Spray Grade - CE certification.

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 and concrete floors.

Astro PS Coat is a water-based, acrylic, ablative coating with excellent fire, 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 equal or greater than 140kg/m3 density and equal or greater than 50mm thickness.


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

ul-eu_certification 'UL Documentation' are 'UL - EU Certificate'


Properties & Specification


Water based flexible acrylic coating



Specific Gravity

1.45– 1.55 g/cm³

Fire Resistance

EN 1366-3 EI 60


EN 1366-3 60mins


EN 13501-2

Acoustic Insulation

EN 10140 51dB when installed with 100mm thick 140kg/m3 stone wool.

Air Permeability

600 Pa EN 1026 - 100Pa 1.8/1.4 m3/h/m2

Shelf Life

12 Months

Cure Rate

0.5mm per day at 50% relative humidity 23°C

Tack Free

6 hrs at 23°C, 50% RH

Application Temperature

+0°C to +30°C

Coating Thickness

1mm Nominal, wet coating thickness

Spray Pressure

Machine 90psi / Tip 6000psi / Tip Size 0.85mm

Installation Specification

50mm stone wool - EI 60 - EN 1366-3
100mm stone wool - EI 120 - EN 1366-3

Product Availability

ASTRO PS COATING - Sold per 5 Kilo Tub.

Product Code

Product Description


Astro PS Coat

To Order & Specify

Please contact us and quote the following information - Please quote- Quantity / Trade name / Product Ref
Typical wording- 10 / Astro PS Coat / AFPSCOAT

>> Tel: 01329 844 500 or >> Email:


Astro PS Coat is manufactured in the EU, meeting the highest quality standard in compliance to ISO EN 9001. For fire test certification and technical advice contact Astroflame technical department.


For further information on installation requirements please review the installation video or contact the technical team on: tel 01329 844 500 or email

Health and Safety

The product does not present any known health hazards during or after installation. Normal good industrial and personal hygiene practices should be observed. For further information on health and safety requirements please contact the technical team on: tel 01329 844 500 or email

Environmental Impact

Low VOC (air quality).
No Power Tools required for installation (no energy source required).
Dust free.
No water pollution.
Smoke and Air Tightness.
Water Tightness.
Noise Reduction.
Thermal Insulation.
Recycling of Packaging.
Avoidance of Air Filtration.
Does not emit halogenated by-products.
Life cycle of over 25 years.

Astroflame (Fire Seals) Ltd. Intumescent House
Unit 8, The IO Centre, Stephenson Road, Segensworth
tel 0800 023 2482
(01329 844500)
fax 0800 023 2483
(01329 844600)
tel +44 1329 844500
fax +44 1329 844600



Email Astroflame