Coated Steel Sheet has been used extensively by the construction industry throughout the World for nearly two centuries. Because of its excellent corrosion resistances, it has become the preferred material for a wide range of construction uses, particularly roofing and walling.
Coated steel sheet is a unique building material. It combines the strength of steel with the excellent corrosion protection of zinc/aluminum alloy coatings. It can be punched, roll-formed and joined in to a limitless number of structural and decorative building products.
This material handling, storage & safety data sheet is applicable for Pre-painted / AI-Zn Alloy coated / Galvanised steel products under the following instructions after the shipment from ALFA STEEL. AlfaSteel's recommendations on the handling of Alfa Pre-painted / AI-Zn Alloycoated / Galvanised productsteelcoils, sheetforroofing / building / cladding construction / installation.
Base Metal | High Tensile Steel |
Coating Mass | 150 AZ / 70 AZ |
Yield Strength | 550Mpa |
Properties | SUPER/HIGH Durable Polyester | RMP | SMP | PVDF | PVC |
---|---|---|---|---|---|
Flexibility | Good | Fair | Poor | Good | Excellent |
UV Resistance | Good | Poor | Fair | Excellent | Good |
Gloss Retension | Excellent | Good | Good | Poor | Fair |
Chalking Resistance | Good | Poor | Fair | Excellent | Fair |
Costs | Marginal | Lowest | High | Very High | High |
Durability Yrs | 10 | 8 | 10 | 15 | |
SST Hrs | 1000 | 750 | 750 | 1000 | 1000 |
Consumption per lit. | Colour Specific | ||||
Foam Adhesion | Colour Specific |
COMPARISON |
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Types of products | PVDF | SDP | SMP | RMP |
---|---|---|---|---|
Description |
Highest UV resistance coating based on a mixture of PVDF and Acrylic resins. ( Applicable in adverse climatic condition like High rise building, Malls, Facades ) |
This product gives best possible UV resistance of polyester based coatings ( Applicable in Roofing, façade cladding of residential) |
Silicon Modified polyester based coatings for elevated temperature areas |
A wide & varied range of products based on polyester resins |
Corrosively Environment |
C3 Category |
C2 Category |
C2 Category |
C1 Category |
End Use |
Especially suitable for facades in residential areas. |
Roofing & Siding |
Roofing & Cladding |
Facades, Roofing& Ceilings |
Resin System |
PVDF & Acrylic Resin (70:30) |
Super Durable Resin |
Silicon Modified Resin |
Modified Polyester Resin |
Pigments |
High Performance Inorganic Pigments |
High Performance Pigments |
Regular Organic and Inorganic Pigments |
Regular Organic and Inorganic Pigments |
Shades |
Restricted Colours |
Restricted Colours |
All Shades |
All Shades |
Recommended DFT |
18-20µ |
18-20 µ |
14-20 µ |
14-20 µ |
Gloss* @ 60 (%) |
10-35 |
10-80 |
10-80 |
10-80 |
QUV* @ASTM G154 |
4000Hrs |
1500Hrs |
1000Hrs |
1000Hrs |
SST** @ASTM B117 |
1500 Hrs |
1000Hrs |
1000Hrs |
1000Hrs |
Humidity |
2000 Hrs |
1000 Hrs |
1000 Hrs |
1000 Hrs |
Hardness |
Soft film with low scratch resistance |
Good Scratch resistance |
Very Good scratch resistance |
Excellent scratch resistance |
Flexibility |
Flexible Top Coats |
Medium Flexible |
Semi Hard Topcoats |
Average Flexibility |
Chemical Resistance |
Excellent |
Excellent |
Good |
Average |
Warranty |
10-12 years warranty based on shade & territory |
8-12 years warranty based on shade & territory |
5-10 years warranty based on shade & territory |
No Warranty |
Easy to install, crimped curved sheets provide versatility and creativity that bring new and refreshing design to industrial and domestic buildings. The combination curves and contours in concave and convex shapes with flats and angles can be used to add an aesthetic appeal to the building.
These sheets provide absolute design freedom with significant cost saving in construction. This is possible because
Alfa offers traditional and popular Mangalore Tiled shape profile. Elegant looking clay tiled profile sheets are available in variety of colors, adds beauty to your roof. Tile Roof Sheet offered come in precision designed and construction finish so as to perfectly match up with the different roofing requirements. Further, the superior construction values of these sheets also make them provide for excellent resistance from corrosion as well as deliver optimum sound insulation and fire retardant support as demanded by the customer’s insulated panel.
ALFA PEB LTD can supply TATA BLUSCOPE COLOR BOND - THERMATECH painted roofing sheets which has the following advantages.