PPGI Product Brands & Specifications

Pre-painted galvanized steels with brand names of Molawan, ColoRite are manufactured to meet the technical requirements of various industrial applications of pre-painted galvanized steel, in terms of Color, Adhesion, Flexibility, stain resistance, corrosion resistance & surface hardness.

Our pre-painted galvanized product colors can be chosen from the “Classic RAL Picker,” or you can send in a sample chip to UNICOIL for color matching. UNICOIL has vast experience in color matching. UNICOIL uses custom-formulated primers consisting of corrosion inhibitors and pretreatment to produce products with enhanced corrosion resistance. A full system of chrome-free products complying with RoHS (Restriction of Hazardous Substances) requirements are also available.

What are Lead-Free Paints?

UNICOIL strictly uses lead-free paints for manufacturing pre-painted galvanized steel products. The upper limit for the concentration of lead in residential paint is ≤90 ppm (i.e., 90 mg/kg). Paint with lead levels at or below 90 ppm is considered to be lead-free. The use of lead-based pigments negatively affects the durability of painted products and also harms the health of human beings, especially children, and the environment. Although lead-based paints are cheaper, as part of its manufacturing responsibility, UNICOIL uses paints that are free of lead to protect society from its ill effects.

What is the Recommended Minimum Zinc Coating of Pre-Painted Galvanized Steel?

UNICOIL recommends that the zinc coating mass for pre-painted galvanized steel (PPGI) product be a minimum of 90 gsm (grams per square meter) in order to deliver the minimum expected product performance and service life. Applications that are closer to the sea, offshore, or in urban areas will require a heavier zinc coating. The thickness of the steel also significantly affects the product performance and its service life, and should be determined based on the final product end use and the site of installation.

What is PPGI Chrome Free?

Chromium-free pre-painted galvanized steel is an extra eco-friendly product, produced by applying a chemical conversion coating layer and a primer coating layer, both chromium-free, on the surface of the hot-dip zinc coated steel substrate, and then applying a topcoat. Since the topcoat does not contain any chromium even in conventional pre-painted galvanized steel, this new product is completely chromium-free and complies with ROHS regulations. (ROHS: Restriction of Hazardous Substances directive).

Customers with other Special requirements should contact a UNICOIL sales engineer or use the product recommendation available on our website.

UNICOIL uses only lead-free paints for all its products.

Innovative Solution

UNICOIL’s cooperation with its Paint suppliers generates extensive research and development for more innovative, technologically and demand-driven products. Part of this cooperation includes installation of a state-of-the-art coating blending system –“Paint Mixing Station” at UNICOIL premises in Jubail Industrial City.

One of the objectives of this cooperation is to bring Innovative International Technology of coil coatings to Middle East Markets and enhance after sales solutions for the benefit of UNICOIL’s valued customers of pre-painted galvanized steel products.

Pre-Painted Steel Coils

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

*Other substrates such as Aluminum, Galvalume (Zinc-Aluminum coating on steel), ZAM (Zinc Alumium Magnesium coating on steel) can also be coated.

Pre-Painted Steel Coils

Thickness (TCT-P)	0.22*** -1.20 mm
Width	700 – 1250 mm
Coil Inner Diameter	508 mm
Configuration	Twin coater (single-pass production)
Capacity	120,000 metric tons per annum
Paints	Polyester, PVDF, acrylic, polyurethane, epoxy Paint system
Zinc Coating	40* – 275 GSM
Paint Coating	up to 120 µ

UNICOIL offers additional services beyond metal coating in various steel ranges and colors, thereby expanding the flexibility of its products. UNICOIL has a facility for slitting pre-painted galvanized steel coils into slit widths and can put strippable film onto pre-painted galvanized steel to avoid scratches during handling.

Notes

For specific dimensions and Coating requirements please contact sales and Marketing.

TCT-P – Total Coated Thickness with Paint Film (Steel thickness + Zinc coating thickness + Paint thickness)

*Less than 90 GSM zinc coating is available for standards other than SASO ASTM. minimum PPGI thickness for 40 GSM will be available for 0.35mm and above.

**Differentially Zinc coated Pre-Painted Galvanized Steel is available on request. For details refer to Technical Data Sheet.