Trade Name: Astro LST Mastic
Low Smoke & Toxicity Intumescent Mastic Sealant
Designed for use within enclosed areas such as tunnels and underground systems.
Tested for passenger carrying train systems to BS6853:1999.
Low smoke and toxicity levels.
Tested in accordance with EN 1366-3 : 2009.
Tested BS 6853:1999 D8.3: Smoke Ao (max) and tested BS 6853:1999 B.1: Toxicity R value.
Fire Classification to EN 13501-2.
Tested in accordance with EN 10140-2 : 2010.
Air Permeability testing to EN 1026.
Mechanical Adhesion and Tensile testing to EN ISO 8039 & EN ISO 9046.
A one water based acrylic sealant designed to resist the passage of fire, by forming a char that prevents the passage of fire and smoke, while maintaining excellent low smoke and toxicity levels.
Astro LST Mastic is halogen free and does not emit halogenated by-products under fire conditions.
High performance fire resistance rating with joint movement capabilities.
Highly flexible and it has good unprimed adhesion to a wide variety of common building substrates.
Tested in Block Wall, Concrete, Masonry and Plasterboard Partition. Tested in Concrete Floors.
Tested in gaps up to 60mm wide.
In normal use it maintains the sound reduction index of a structure.
This sealant contains no raw materials known to have an estrogenic effect in the environment.
Astro LST Mastic is not affected by an outdoor environment. However, for long term storage and ease of installation, it is recommended that it should be stored indoors ideally in dry frost free conditions above 0°C and below +30°C.
The Astro LST Mastic Comes Only in White.
To Order & Specify
Please contact us and quote the following information - Quantity / Product Code / Product Description / sizes
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 firstname.lastname@example.org
As part of our policy of ongoing improvements, we reserve the right to modify, alter or change product specifications without giving notice. Product illustrations are representations only. All information contained in this document is provided for guidance only, and as ASTROFLAME (FIRE SEALS) LTD has no control over the installation methods of the products, or of the prevailing site conditions, no warranties expressed or implied are intended to be given as to the actual performance of the products mentioned or referred to, and no liability whatsoever will be accepted for any loss, damage or injury arising from the use of the information given of products mentioned or referred to herein.
The above information to the best of our knowledge is true and accurate and based upon current test data and is supplied for your guidance only. Customers should satisfy themselves to the suitability of the product in its intended use and no guarantee is given or implied since the conditions of actual use are beyond our control. ASTROFLAME (FIRE SEALS) LTD, disclaim any liability for loss, damage or other expense arising from the use of information, data or products mentioned or referred to and reserve the right to change any details or specifications without notice.