Fireproof sealant
LaSeal 978 Fire rated MS Polymer Sealant
Features
● Low smoke emission in the burning state.
● Good UV resistance and weather resistance.
● It has good adhesion to a variety of substrates
Technical Data Sheet(TDS)
LaSeal 978 Fire rated MS Polymer Sealant
Standard:
Meets or exceeds the requirements of the following specifications:
The requirements of VOC content specifications in LEED credit EQc4.1
"Low-emitting products" of SCAQMD rule 1168.
The French VOC requirements for class A+
CE marked for EN 15651 for façade applications.
Item | Data |
Chemical Base | MS Polymer |
Curing System | Moisture |
Density | 1.5 ± 0.1 gr/ml |
Appearance/Color | Paste,Black |
Skin Dry time | 40 min (23°C and %50 R.H.) |
Speed of Squeeze | 500g/min GB/T 13477.4 |
Hardness Shore A | 40 |
Elongation at break | 260 |
Tensile strength | 2.2 N/mm2 |
Smoking Density | 80 |
Flame-retardant grade | V-0 |
Temperature Work | -40°C and +90°C |
Shelf life | 12 months |
Curing condition of the sample :23℃×50%RH×14 days | |
Restrictions:
● Not suitable for freezing or damp, silicone oil-containing base surface and silicone rubber.
● The surface of the substrate to be adhered must be clean and dry, free of dust, oil and water stains. Adhesive substrate should be used for cleaning with cleaning agent. Otherwise, it may cause bonding failure.
● Temperature and humidity have a great impact on the surface for drying and curing of the sealant, and the construction environment is recommended Temperature 5～35℃, humidity 50～70%RH.
● The node part can be modified and smoothed with a scraper or rigid foam strip, and the ground is partially modified.It can be smoothed with soapy water.
● For construction methods, please refer to the construction instructions or consult our technicians.
Surface Preparation
● Following cleaning procedure and materials are recommended
● Glass Degrease with alcohol or MEK
● Aluminium, light alloys and stainless steel Degrease with alcohol or MEK
● Other Metals Lightly abrade then degrease as above
● Wood Lightly abrade surface then remove dust
● Plastics Degrease using an agent recommended by plastics manufacturer
● Concrete and other alkaline Surfaces Brush and remove dust