Ablative Sealant Coating
Astro PFP FR Coating spray grade, is an ablative sealant coating designed to enhance, seal and fire protect stonewool fibres in Astro PFP FR Boards. It is based on a durable polymer system with inert fillers, non-halogenated fire retardants and a preservative to resist microbial attack.
Astro PFP FR Coating is designed to be applied via spraying directly onto stonewool fibres. The coating dries to give a sound, flexible white surface finish. During installation of Astro PFP FR Boards, the cured sealant coating reduces de-lamination and increases surface stability for adhesive and fixing sealant application.
The ablative property of the coating resists flame spread and protects the stone wool fibres against fire penetration by significantly reducing the permeability of the stone wool fibre core and prevents the passage of hot gases, thus reducing the temperature rise on the unexposed side and reducing heat conduction through the building services.
Astro PFP FR Boards coated with Astro PFP FR Coating are designed to prevent the spread of fire and smoke through openings in fire rated walls and floors, also where openings are formed to allow the installation of multiple building services. The system will also maintain the acoustic design performance.
Emission Data (indoor air quality)
Compound | Emission rate after 4 weeks |
TVOC | 0.20 mg/m2 |
Formaldehyde | n.d. |
Ammonia | n.d. |
Carcinogenic | n.d. |
n.d. means not detected |
Astro PFP FR Coating complies with the requirements of BREEAM according to the M1 Protocol for Chemical and Sensory Testing of Building Materials as published by RTS version 15.12.2004 which is the best possible environmental and indoor hygiene health protection mark for coatings. Tested by Eurofins Product Testing, report number 392-2014-00000407B.
NB. For penetration seals, please see the Installation Instructions for Astro PFP FR Board.
Form | Ready to use viscous paste |
Cure system | Water loss |
Colour | White |
Non-sticky | Max. 75 minutes (sealant) |
Film forming | Max. 25 minutes (sealant) |
Totally hardened | 3 to 5 days depending on thickness and temperature |
Flexibility | High; > 25% |
Specific Gravity | 1.3 - 1.4 |
pH | 8.5 - 9.2 |
Flash point | None |
Solids Content | > 58 % |
Temperature range | -30°C to +80°C (when hardened) |
Application temp. | +5°C to +50°C |
Shelf life | Up to 12 months when stored in unopened containers under cool dry conditions. AVOID FROST and extremes of temperature. Stored in temperatures between 5°C and 30°C |
Product Code | Product Description | Weight |
AFPFPC | Astro PFP FR Coatings | 8 Litres |
We have technical representatives who provide assistance in the selection and specification of the products on this site and should be consulted for exact installation and product suitability. Ensure an early engagement with ourselves, designers, main contractor and specialist installers before any installation. Other trades and/or manufacturers may need to be consulted. For in-depth information, specification and technical advice please call our Head Office on:
Telephone: +44 (0)1329 844 500 Email: sales@astroflame.com
All interested parties, designer, specifier, main contractor and specialist installers should provide access to allow the fire stopping seals to be regularly inspected and maintained, as well as records kept of such maintenance at minimum periods of 12 months, as required by the Regulatory Reform Order, and repaired if necessary. Reference should be made to ASFP TGD 17 – Code of Practice for the Installation and Inspection of Fire Stopping.
It is vital that those entrusted to design or install a fire stopping product have the necessary levels of competence to undertake the task professionally and thoroughly. The level of competency required will be commensurate with the expected complexity of the building. All designers must eliminate, reduce or control foreseeable risks that may arise during installation, construction or maintenance when preparing or modifying designs. Clients should ensure that the principal designer and principal contractor carry out their duties under CDM regulations. The ASFP foundation course in passive fire protection provides essential knowledge as part of demonstrating competency and understanding in this key fire protection specialism.
Please refer to the ETA sheet for fields of application for this product. For further information on installation requirements please refer to the manufacturer of the services and the wall/floor specification to ensure the compatibility of this product, if in doubt please contact the technical team with services and wall/floor specification on:
Telephone: +44 (0)1329 844 500 Email: sales@astroflame.com
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:
Telephone: +44 (0)1329 844 500 Email: sales@astroflame.com
Web Page