tel 01329 844500 (+44 1329 844500) email:

ABLATIVE COATING - Trade Name: Astro Coat - Spray Grade.

Astro PS Coating CE certification.


UL CE and other certification logos.

CE Documents:

'DoP's = Declarators of Performance.

'CoC's = 'Certificates of Constancy'

TDS = Technical Data Sheet

Astro Coat ablative coating.

DoP Astro Coating

CoC Astro Coating

Astro Coating TDS



UL Documentation


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

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.

Fire protects service penetration openings containing metallic pipes, cables, cable trays, heating & ventilation ducts and trunking. Can be used to coat service insulation as part of the sealing system.

At normal temperatures the coating remains flexible to permit thermal and mechanical movement of services and the building structure. (If you need a very flexible coating see FLEXI-COAT).

Astro Coat is a thinner formulation for use with ASTRO BATT fire board, to seal the edges around the services and between the substrate and the batt before installation. Application is by spray, or brush or pouring applications. (Trowel Grade is also available).

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

Fire Resistant testing to EN 1366-3 EI 60 EI 90, EI 120, BS 476 - 240mins.


Key Properties

CE Marked, UL-EU Listed and Certifire Approval

Fire Resistance Testing to EN 1366-3 EI60, EI 90, EI 120

Fire Classification to EN 13501-2

Fire Resistance Testing to BS 476 240 minutes

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

Air Permeability testing to EN 1026 to 600Pa

Acoustic Isolation testing to EN 10140 to 63dB

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

Properties & Specification


Water based flexible acrylic coating



Specific Gravity

1.25 – 1.3 g/cm³

Fire Resistance

EN 1366-4 EI 60, EI 90, EI 120 - BS 476 240mins


EN 1366-3 120mins


EN 13501-2

Acoustic Insulation

EN 10140 49dB when installed with 50mm Astro Batt.
EN 10140 63dB when installed with 2 x 50mm Astrol Batts & PB insert.

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

2.5mm Nominal, wet coating thickness


26.7 ISO 4589-2:1996


Astro Coat - Sold per 5 Kilo Tub.

Product Code

Product Description


Astro Coat - Spray Grade

To Order & Specify

Please contact us and quote the following information - Please quote- Quantity / Trade name / Product Ref
Typical wording- 10 / Astro Coat - Spray Grade / AFBCOAT5L

>> Tel: +44 1329 844 500 or >> Email:


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


For further information on installation requirements please review the installation video or contact the technical team on: tel +44 1329 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 +44 1329 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)

intl tel +44 1329 844500

intl fax +44 1329 844600