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Molawan
Molawan was Developed for Cost-Effective Applications Including Roofing and Cladding. Molawan is a Paint system comprising hot-dip galvanized steel sheet with a minimum Zinc coating mass of 90 gsm that is painted on and oven cured with regular polyester in combination with a custom-formulated primer. This produces a nominal paint dry film thickness of 20 microns on the top surface (inclusive of primer) and 10 microns on the bottom (inclusive of primer). Molawan was developed for cost-effective applications including roofing and cladding.
Standards
Substrate
Galvanized Steel, Minimum G30 (90 GSM)
Standards and Grades:
| Standard | Description | Sub-Strate Standard | Grades |
| SASO ASTM A755/ A755M | Standard Specification for Steel Sheet, Metallic Coated by the Hot-Dip Process and Pre-painted by the Coil-Coating Process for Exterior Exposed Building Products | SASO ASTM A653/A653M | CS-Type A, B, C, FS Type A, B, SS33, SS37, SS40, SS50, SS55, SS60 & SS80 |
| ASTM A755/ A755M | Standard Specification for Steel Sheet, Metallic Coated by the Hot-Dip Process and Pre-painted by the Coil-Coating Process for Exterior Exposed Building Products | ASTM,A653/A653M, ASTM,A792/A792M, Aluminum Flat coils | |
| EN10169 | Continuously organic coated (coil coated) steel flat products Technical delivery conditions | EN 10346 | DX51D. DX52D, S220GD, S250GD, S280GD, S320GD, S350GD, S390GD, S420GD & S550GD |
| JIS G3312 | Pre-Painted Hot Dip Zinc coated Steel Sheet and Strip | JIS G3302 | SGCC, SGCD1,SGC340, SGC400, SGC440 & SGC570 |
| AS 2728 | Prefinished/pre-painted sheet metal products for interior/exterior building, applications Performance requirements | AS 1397 | S250, S300, S350, S450, S550 |
Typical Uses
Roofing and Walling, False Ceiling, Appliances
Dimensions: (For normal supply products)
| Thickness* (TCT-P) mm | Width** (mm) | Zinc coating*** (GSM) |
| 0.22 to 1.50 | 700 to 1300 | 90 (G30) minimum |
* For grade SS50, minimum thickness is 0.46 mm.
** For width less than 700 mm are supplied with slit edge
*** Less than 90 GSM zinc coating is available for standards other than SASO ASTM
For specific dimensions please contact Sales and Marketing Dept.
TCT-P – Total Coated Thickness with Paint Film (Steel thickness + Zinc coating thickness + Paint thickness)
| Pretreatment | Corrosion resistance proprietary conversion coating each side |
| Primer Coat | Universal Corrosion inhibitive Primer Nominal Thickness: 5 µm each side |
| Finish Coat | Polyester based custom formulated system. (Regular Modified Polyester) Nominal thickness: 15µm on the top or weather side. The finish coat can be applied to both sides to provide double sided product, if required. |
| Backing Coat | Polyester based custom formulated off white or Foam compatible epoxy backing coat. Nominal thickness: 5-7 µm. |
| Gloss (60˚) | Medium Gloss. Other gloss levels may be available on request |
Guaranteed Paint Properties
| Test | Test Method | Description | Results |
| Hardness (Pencil) | ASTM D 3363 | Pencil | HB or Harder |
| Adhesion -T bend | ASTM D 4145 | T-bend | 5T or less |
| Adhesion – Reverse impact | ASTM D 2794 | Reverse impact | > 9 joules |
| Cross hatch | ASTM D 3359 | Cross hatch | No paint removal”0″ Rating |
| Gloss 60˚ (%) | ASTM D 523 | Gloss | 30-70±5% |
* Minimum PPGI thickness for 40 GSM will be available for 0.35mm and above.
