FIRE RETARDANT PANEL
Viva Fire Retardant Grade: Viva FR Grade B1 Panel is an Aluminium composite material (ACM) for the Construction Industries . Its Composed of Core Material & Aluminium Skin with the Fluorocarbon Finish The Core Material contents a Non Combustible Mineral & Small Content of thermoplastics, which ensure high Performance of Fire safety of this Material.
- Provides sound insulation and resistant to weathering effects.
- Resistant to breakage.
- Provides thermal insulation and dissipate heat from Sun.
- Reduce temperature variation inside the building.
- Design flexibility.
- Not affected by natural gases.
- Keeps structure dry.
- Better salt water corrosion resistance.
- No polishing is required.
- Fire safety and no toxic gases.
What is PVDF coating ?
Kynar Stands for: Kynar 500® is not a finished paint. It is a trade name for PVDF (polyvinylidene fluoride) resin, as is Hylar 5000®. PVDF resin is the raw material used by licensed formulators to manufacture PVDF based coatings.
PVDF Stands for: Polyvinylidene fluoride, or polyvinylidene difluoride, (PVDF) is a highly non-reactive thermoplastic fluoropolymer produced by the polymerization of vinylidene difluoride. PVDF is a specialty plastic used in applications requiring the highest purity, as well as resistance to solvents, acids and bases.
FABRICATION TECHNIQUE OF VIVA PANELS
Cutting: For cutting a carbide tip saw should be used. The other shearing tools may tilt the edges by 1-1.5 degrees
Jointing: For jointing a circular saw should be obtained with specially designed tooth as shown having 0.8mm width at the bottom.
For 90 degree angle the saw tooth should be 105 degrees.
Groove should remove the back aluminum and some LDPE core leaving about 0.5mm thickness.
Bending: Viva Panels can be bent by using three roller bending machine or single press bending machine Bending radius for press is 40-55mm and for three roller bending is 200-300mm Ideal mold width in single press can be calculated by n= (2*t)+roll radius + foil thickness + 15mm. Where t is panel thickness
The panels are either riveted or screwed to the back construction material
Thermal Expansion Viva panels have a thermal expansion of 2.36x105mm/mm/Oc which means for 4mm panel the distance between two should be 16mm as at 38oC both sides expansion would be 11mm. For keeping this joint intact we should cover it with a good silicon sealant.
Two main things we have to be careful are: 1.All the panels should be placed in one direction
2.The protective layer should be removed within 45 days after mounting the panel