Pre-Painted Steel Coil/ Color-Coated (PPGI)

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On the continuous unit, the base plate of cold rolled strip steel or galvanized strip steel including the electro galvanized type and hot dipped galvanized type is coated with a layer or several layers of liquid coatings through the roll coating method after the surface pretreatment (containing degreasing and chemical processing). Then, after baking and cooling, the coated steel sheet is made. As a result of the colorful coatings, we customarily call the coil form product as color-coated steel coil. For another, the coating is conducted before the forming process of the steel plate. So, the product is endowed with the name of pre-painted steel plate.

Pre-Painted Steel Coil/ Color-Coated (PPGI)

There are many kinds of organic coatings coming with polyester, silicon modified polyester, acrylic acid, plastisol, organosol, etc. With the thickness of 20µm to 100µm, the coating combines with the base plate strongly. It has good waterproof and corrosion resistant performance by resisting the corrosion against the concentrated acid, concentrated alkali and alcohols but poor anticorrosion ability against the organic solvent.

The pre-painted steel coil can be fabricated with diversified colors and patterns like leather, wood grain, textile fabric, etc. in appearance to raise the decorative effect. Its base material of steel strip is mainly the carbon structural sheet of Q195 and Q215 with certain strength, good plasticity as well as excellent processing formability. The product is extensively taken for use in the industrial departments like construction, light industry, automobile, home appliance, etc. It can also be employed for manufacturing the agricultural implement, steel furniture, daily life appliance, etc.

Technological Process
The major production technological processes of the common two coating two baking continuous color coating unit are listed as below.
Uncoiling → Pretreatment → Coating → Baking → Post -treatment → Coiling

Performance and Specification

Zinc Coating Weight of Base Plate

No.	Use	Base Plate	Zinc Coating Weight(g/m²)	Remark
1	Building exterior	Hot dipped galvanized steel sheet	90/90	Maximum value of 140/140
2	Building interior, steel window	Hot dipped galvanized steel sheet	90/90
2	Building interior, steel window	Electro-galvanized steel sheet	60/60
3	Home appliance, furniture	Cold rolled steel plate	--
3	Home appliance, furniture	Electro-galvanized steel sheet	20/20

Type and Corresponding Grade of Base Plate

Base Plate Type	Standard, Grade and Use of Base Plate			Grade of Color Coated Steel Plate
Base Plate Type	Standard	Grade	Use	Grade of Color Coated Steel Plate
Cold rolled steel plate	Q/BQB 402	SPCC	General use	TSPCC
	Q/BQB 402	SPCD	Drawing	TSPCD
	Q/BQB 403	St12	General use	TSt12
	Q/BQB 403	St13	Drawing	TSt13
Electro-galvanized steel sheet	Q/BQB 430	SECC	General use	TSECC
		SECC	Home appliance	TSECCB
		SEDC	Drawing	TSECD
	Q/BQB 431	BLCE Z	General use	TBLCE
	Q/BQB 431	BLDE Z	Drawing	TBLDE
Hot dipped galvanized steel sheet	Q/BQB 420	St01Z	General use	TSt01
		St02Z	Mechanical lock forming	TSt02
		St03Z	Drawing	TSt03
		StE280 - 2Z	Structure	TStE28
		StE345 - 2Z	Structure	TStE34
	Q/BQB 422	CD51D Z	General use, mechanical lock forming	TDC51D
		CD52D Z	Drawing	TDC52D
		S280GD Z	Structure	TS280GD
		S350GD Z		TS350GD
		S550GD Z		TS550GD
Note: The grade with a G at the end means the base plate for steel window, such as TSt02G, TSECCG and TDC51DG.

Structure, Surface Condition and Type of Coating

Classification	Item		Code
Use	Building exterior		JW
	Building interior		JN
	Steel window		GC
	Home appliance		JD
	Furniture		JJ
	Other		QT
Surface condition of coating	Pre-painted steel sheet		TC
	Metal embossing plate		YA
	Printed metal sheet		YI
Type of coating	Polyester		JZ
	Silicon modified polyester		GZ
	Polyvinylidene fluoride		KF
	Polyvinyl chloride plastisol		SJ
Type of base plate	Cold rolled steel plate		LZ
	Electro-galvanized steel sheet		DX
			RG
			RW
Coating structure	Upper surface	Lower surface	--
	One coating	One coating	1/1
	Secondary coating	Secondary coating	2/1
	Three times coating	Three times coating	2/2
Note: The upper surface denotes the front of steel plate and outside surface of steel coil.

Product Grade in Chinese and Japanese Standard Reference Table

Standard	Q/BQB440 - 1999	JISG3312-1994
Grade	TSPCCTSt12	--
	TSPCD TSt13	--
	TSECCTSECCB TBLCE	--
	TSECDTBLDE
	TSt01TSt02TDC51D	CGCC
	TSt03TDC52D	CGCD1
	TStE28ts280GD	CGC400
	TStE34TS350GD	CGC440
	TS550GD	CGC570

Application

Construction industry (outdoor)	Factory building, agricultural warehouse, residential prefabricated part, corrugated roof, wall, rain water pipe, balcony railing, newsstand, refrigerated storage, kiosk, rolling shutter door, etc.
Construction industry (indoor)	Door, door frame, light steel structure, screen, ceiling, electrical elevator, staircase, ventilation duct, etc.
Electrical appliance	Refrigerator, washing machine, switch cabinet, instrument cabinet, air conditioner, microwave oven, bread maker, etc.
Furniture	Heating radiator, lamp cover, wardrobe, desk, bed, locker, book shelf, etc.
Transportation	Interior decoration of automobile and train, clapboard, container, isolation railing, storehouse separating board in steamship, etc.
Others	Whiteboard for writing, dustbin, advertising board, clock, typewriter, instrument panel, weight scale, photographic apparatus, etc.

Classified Application of Products with Different Coatings
PGS Product with Polyester Resin (table 1)

Feature	Typical Application	Remark
Excellent processability for general use	1. The exterior material (roof material and wall material) for building in industry, commerce, public facilities and residence 2. The internal material, internal wall material, ceiling board, clapboard and fire protection board in building3. The architectural accessories such as window board and signboard4. Home appliance such as gas boiler, rice barrel, etc.	This type of color coated steel coil has various applications covering building internal and exterior materials, home appliances, etc.

PCS High Workability Product (table 2)

Feature	Typical Application	Remark
Nice appearance and high workability for home appliances	1. The home appliances such as refrigerator, electronic stove, washing machine, gas boiler, light implement, display case, drying machine, etc.2. The internal material, internal wall material, ceiling board, clapboard and fire protection board in building	The product has remarkable workability, high chemical resistance, good glossiness and hardness. So, it is mostly taken for manufacturing the home appliance requiring high level appearance quality.

PVS Salinization Ethylene Product (table 3)

Feature	Typical Application	Remark
Unique building internal and exterior materials with super strong weather resistance, high workability and automatic flame extinction ability	1. The exterior material (roof material and wall material) for building in industry, commerce, public facilities and residence2. The internal material, internal wall material, ceiling board and clapboard in building3. The industrial machine such as air cooler, industrial robot, etc.	The PVS salinization vinyl resin has excellent resistance to weather chemical and corrosion. The elongation of the coating can get to 300% to 400%. Under any processing condition, it won’t crack easily. The specific embossing effect enables the product with good mechanical property, nice appearance and high durability lasting for over 15 yeas. The PVS pre-painted steel coil (sheet) is the only one which has the automatic flame extinction ability in all the color coated steel plates. So, it is the only optimum choice for use in special area involving chemistry, coast area and sulfur dioxide gas.

PVDF Fluororesin Product (table 4)

Feature	Typical Application	Remark
Ultra high weather resistance and strong durability lasting for over twenty years	1. The exterior material (roof material and wall material) for building in industry, commerce, public facilities and residence2. The internal material, internal wall material, clapboard, ceiling board and fireproof door in building	This kind of product is fabricated by making use of the polyvinylidene fluoride resin. It performs more excellently in the long-term resistance to corrosion, weather and chemical than other product in many application areas.

PSP High Weather Resistant Product (table 5)

Feature	Typical Application	Remark
Outstanding corrosion and weather resistance	1. The exterior material (roof material and wall material) for building in industry, commerce, public facilities and residence2. The internal material, internal wall material, clapboard and ceiling board in building	The weather resistance of the steel plate is boosted. The pre-painted steel coil is especially appropriate for use as the exterior material in building having high requirements to the resistance to chemical, corrosion and weather.

Variety of Our Product

Available Material	TSt01, TSt02, TDC51D, CGCC, etc.
Available Specification	0.2mm-1.5mm in thickness and 700mm-1530mm in width
Quality Standard	Enterprise standard, Chinese standard, JIS, DIN, ASTM

Related Names
Decorative Steel Supplier | Roofing Steel | Metal Coil

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