Constructed from a mineral fibre core coated on both sides with Astroflame mastic, theAstroflame fire batt is specially designed to seal service penetrations in walls and floors. When the mastic coating is subjected to high temperatures it transforms into a hard ceramic that prevents the passage of fire, smoke and heat for up to 4 hours. Suitable for indoor use without additional protection, with a lifespan of over 25 years, and also providing acoustic and thermal insulation, the Astroflame batt has been tested and proven in a variety of construction materials including concrete, masonry, and plasterboard partitions.
240 minute fire rating
Tested to BS 476 Part 20 & EN 1366 Part 3
Certifire approved
Thermal and acoustic insulation
Available in two versions:
600x1200x50mm 140Kgm²
600x1200x60mm 160Kgm²
Halogen and asbestos free - no toxic gases emitted when exposed to flame
Reduced smoke properties
Unaffected by fungus, moisture, oil, or vermin
Remains flexible between -5°C to +70°C
Not suitable for installations subject to regular structural movements
CE Marked
UL certified
Please note: Dust masks, eye protection and gloves should be worn when cutting. Cut edges should be sealed using Astroflame Coating to maintain integrity. Seal batt in place with Astroflame Intumescent Acoustic Mastic.
This is the technical data for the Astroflame Fire Resistant Batt.
Dimensions (LxWxD) 50mm: 1200 x 600 x 50mm
60mm: 1200 x 600 x 60mm
Density 50mm: 140kg/m³
60mm: 160kg/m³
Protection Level 4 hours
Thermal Conductivity 0.034 W/mK at 10°C
Air Permeability BS EN 1026: 600Pa - 100Pa 1.8/1.4 m³/h/m²
Water Vapour Permeability 3.08g/m²/24 hours
Acoustic Insulation BS EN 10140: 48dB
Maximum Size of Seal Wall: 5.76m²
Floor: 2.88m²
Lifespan over 25 years
Heat Ageing 336 hours: no defects at 40°C
Passive Fire Products have a range of Fire Resistant Batt's all available on next day delivery. Take a look here or call our team to discuss your required specification.
