FyreBrake™ Sealant
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FyreBrake™ is a high performance, 100% polyurethane construction sealant, which does not shrink, dry out or crack. FyreBrake™ is fire and acoustic rated for sealing residential and office partitions, concrete block, tilt-up and precast concrete. |
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SPECIFICATIONS
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Typical Properties
Typical properties after 7 days cure at 25°C and 50% RH
| Appearance |
Grey, Non sag smooth
thixotropic paste |
| Chemical Type |
Polyurethane |
| Specific Gravity |
1.6 |
| Sag ASTM C639 |
None |
| Application Temperature |
+4°C to + 40°C |
| Tool Working Time |
2 – 4 hours @ 24°C, 50% RH |
| Cure Rate |
2 mm per 24 hour period
Full cure within 7 days |
| Max. Joint Movement |
± 25% |
| Max. Joint Width |
50mm |
| Elongation at Break ASTM D412 |
500% |
| Cure Hardness ASTM C661 |
Shore A 47 |
| Peel Adhesion ASTM C794 |
67 N |
| Max Tensile Strength ASTM D412 |
2.24 N/mm2 |
| Service Temperature |
-40°C to + 93°C |
| Water Resistance AAMA 800 |
Passes |
| VOC |
20 gram / litre |
| Acoustic Rating |
Up to Rw (STC) = 60
Rw + Ctr = 52 |
| Substrates |
Plasterboard, Fibre Cement Sheet, Solid Concrete, Brick,
Concrete Block, Aluminium Steel |
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FEATURES & BENEFITS
- Fire rated to AS1530.4
- Acoustic Rated
- VOC Rated
- UV and Weather Resistant. No sagging or running
- Easy to dispense in cold weather
- Strong adhesion. Excellent flexibility – joint movement ± 25%
- Non-corrosive neutral cure
- Paintable with acrylic based surface coatings
- Complies with:
- - TT-S-00230 C (Type II) Class A, Non-sag, One component
- - ASTM C920 Type S, Grade NS, Class 25, Use-NT, Use-A, Use-M, Use-G, Use-O
- - AAMA 808.3-92
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INSTALLATION GUIDE
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Consult technical data for tested applications and fire ratings, before commencing use. For detailed technical data and instructions go to www.ramset.com.au. For applications outside those tested, refer to your Fire Consultant for compliance advice. Fire Rating Certificates Available on Request. Refer to (CSIRO Test Reports FS1202 & FS1203)
Acoustic Installation
The following detail was extracted from Graeme E. Harding & Associates Report 056-202, available from Ramset™ or the website.
Wall Construction
Frame: Rondo 92 mm wide floor, edge and head channels. Rondo 92 mm wide vertical channels at 600 mm spacings.
Cavity Insulation: 60 mm thick Bradford Soundscreen R1.6 Rockwool Partition Batts
Cladding - Transmission Side: 2 layers of 13 mm Boral fire rated plasterboard installed horizontally with nominal 10 mm gap top and bottom and 5 mm gap on each side. Sheets of outer layer staggered to cover joins between sheets in inner layer. Joints were not taped or set.
Cladding - Receiving Side: 3 layers of 13 mm Boral fire rated plasterboard installed horizontally with nominal 10 mm gap top and bottom and 5 mm gap on each side. Sheets of outer layers staggered to cover joins between sheets in inner layers. Joints were not taped or set.
Ramset™ Fyrebrake™ sealant was installed in the perimeter gaps after measuring sound insulation of the uncaulked wall.
Total Mass: 54.6 kg / m2 Total Thickness: 157 mm
Test Results
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Rw (dB) |
Ctr (dB) |
Rw + Ctr (dB) |
| Uncaulked Wall |
24 |
0 |
24 |
| Wall caulked with Fyrebrake™ Sealant |
60 |
-8 |
52 |
The wall was designed to achieve an Rw = 58 + 2 dB. The test demonstrated that using Ramset™ Fyrebrake™ sealant in the perimeter gaps enabled the wall’s full design insulation to be achieved.
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TECHNICAL DATA & DOCUMENTS
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Consult technical data for tested applications and fire ratings, before commencing use. For applications outside those tested, refer to your Fire Consultant for compliance advice
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PRODUCT INFORMATION
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TECHNICAL INFORMATION
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