Wall Cladding Roofing Sheet
Wall Cladding Roofing Sheet
Shiv Industries is the name that you can trust on for the manufacturing and exporting of Wall Cladding Roofing Sheets, which are diligently designed by experts after searching out various advanced technicalities that are apt to facilitate clients in their concern industrial applications.
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Specifications :
- Material Specifications : Pre - Painted Steel Sheet
- Pre - Painted Steel Sheet :Pre painted steel sheet is a multi layer-coating sheet available in various sizes and colors
- Pre – painted steel sheet is manufactured by a continuous coating process
- Involves cleaning, pre treating, painting & baking in coil form
- Coils are generally painted with two coat paint systems
- Consisting of a primer & topcoat on exterior side
- Pre painting process is designed to produce highly uniform, high quality paint coatings
- Light weight due to high strength to weight ratio of steel
- Easier handling lower shipping costs, easier installation
- High quality – in recent years steel quality and paint technology have both improved greatly the synergistic effect results in a high performance material
Exterior painting of pre painted sheets consists of :
- Base metal – steel
- Chromate coating – for good adhesion purpose
- Top finish coat – which provides color, pleasing appearance
- Primer coating – for good undercut corrosion resistance, good adhesion and smoothness to topcoat finish
- Metallic coating – (either zinc or aluminum zinc coating) for corrosion resistance
Interior painting of pre – painted sheet consists of :
- Metallic coating
- Top finish coat
- Base metal
- Important criteria for selecting pre painted sheet: Based on base coat
GI base (galvanized base – zn) Specialty of zinc :
- Zinc having self physical property called cathodic reaction
- Adjacent side of the zinc reacts with atmosphere o2 and zno2 layer will form on the cut edges
- Protect from the atmosphere (self healing property)
GL base (galvalume base – alzn) Specialty of al- zn :
- Aluminum having good barrier protection
- Zinc having good self-healing property
- Combination of both will give better resistance to atmospheric corrosion
Raw Material Used :
- Base metal coat – galvanized (gi)- confirm to jis 3312
- Galvalume (gl) – confirm to jis 3322,confirm to astm a792
- Base metal – high tensile cold rolled steel.
Raw material thickness available :
- Galvanized (gi) – 0. 47 mm, 0. 50 mm
- Galvalume (gl) – 0. 47 mm,0. 50 mm
