Fireproof sealant
LaSeal 283 Fire rated Acrylic Sealant
Features
● Exterior or interior use
● Fireproof up to 4 hours
● Water based one component and easy to use
● Excellent sealing performance, smoke blocking
● Excellent fire resistance capacity
● No smell & Non-Toxic
● Filling Joints up to 50mm
Applications
● Excellent for caulking around concrete panels, block work, brickworks, gaps around cables, metal pipes, conduits, busways and ducts that penetrate walls, floors and ceilings.
● Sealing joints in plasterboard technology and fire rated system.
● Small plaster repairs before painting.
● Sealing around window and door frames.
● Sealing of aerated concrete.
● Sealing joints or penetrations requiring to 4 hours fire rating.
● Sealing joints in pre-cast panels.
● To prevent the spread of fire and smoke through walls and floors.
● Perimeter sealing of doors and window framing.
Technical Data Sheet(TDS)
LaSeal 283 Fire rated Acrylic Sealant
Item | Data |
Basic material | Synthetic Latex Emulsion |
Color | White |
Consistency | Paste |
Application Consistency | Brush, Trowel, Caulking Gun, or Power Extrusion |
Average Nonvolatile(FSTM 9A) | 55% BY VALUME (69% BY WEIGHT) |
Viscosity | Softbutterygelwithatypicalviscosityrange of 130.000-160.000cps |
Temperature Resistance | -20℃to 110℃ |
Service Temperature limits | -7℃to 93℃ |
Storage Temperature | 5℃ to 35℃ |
Application Temperature | 5℃ to 50℃ |
Skin Drying Time(mins) | 7 |
Density | 1.58 |
Shrinkage(mm) | 0 |
Elongation at break(%) | ≥108 |
Elongation at break after immersion (%) | 130 |
Curing rate(2mm/h) | 20 |
Consistency (cm) | 8.5 |
Solid content (%) | 80 |
Storage | Storage in cool and dry place at room temperature |
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
Instruction
● Remove all loose materials.
● Always use a standard caulking gun to dispense the sealant.
● Caution: The use of a caulking gun is critical and highly recommended to ensure best finish and faster application.
● Ensure that sealant is in contact with both sides of joints and gaps. Use foam backer rods as necessary.
● Remove excess sealant and smooth it off with a flat knife. Applied sealant is touch dry after 30 mins. Protect from water exposure for at least 4 hours after application. Can be painted over after 2 hours.