
Color Coated Coil
PPGI
The common base plate models of color-coated sheets (color steel plates / colored coated steel plates) include TDC51D, TS280GD, SGCC, SGLCC. Customized colors (providing Pantone/RAL color charts) are supported. Thickness (0.3mm – 1.2mm), width, coating system are available. Compliant with national standards and industry standards. Both in stock and custom options are available.

1. How to get samples to check the quality? How long can I get the samples?
After the price is confirmed, samples can be provided for your evaluation. After confirming the sample details, the samples will be ready for delivery within 3-7 days, and sent to you by courier, and arrive within 3-5 days.
2.Do you provide samples ? is it free or extra ?
Answer:The sample could can provide for customer with free,but the courier freight will be covered by customer account.
3. Do you accept the third party inspection?
Answer: Yes absolutely we accept.
4.Can you accept customization?
Answer:Yes. If you have special requirements on products or packages, we can do customization for you.
5.How do you control the quality?
Answer:We have professional inspectors to analyze chemical composition of raw materials and test the finished products strictly according to standard stipulated in the contract. In this process, Internal and external surfaces, two ends appearance, bending degree, fixed length, outer diameter and wall thickness dimension etc will be checked one by one. You can be assured that all the products you get from us are reliable.


PPGI stands for Pre-painted Galvanized Steel Sheet, commonly referred to in the industry as color-coated steel sheet or color-coated steel plate.
1. Common Substrate Types
| Substrate Type | Features | Application |
|---|---|---|
| Hot-dip Galvanized (GI) | Good corrosion resistance, cost-effective | General construction, interior decoration, home appliance shells |
| Galvalume (GL/AZ) | Higher corrosion resistance, better heat resistance | Building roofs/walls, outdoor construction, high weather resistance applications |
2. Coating Types
| Coating Type | Features | Typical Applications |
|---|---|---|
| Polyester (PE) | General-purpose, bright color, good formability | General buildings, workshops, warehouses |
| Silicone-Modified Polyester (SMP) | Better weatherability and chalking resistance than PE | Outdoor buildings, roofs, exterior walls |
| High Durability Polyester (HDP) | Excellent gloss and color retention | Coastal areas, high UV environments |
| Polyvinylidene Fluoride (PVDF) | Top-level weather resistance, UV & chemical corrosion resistance | Landmark buildings, airports, convention centers |
| Epoxy (EP) | Good chemical resistance & adhesion | Inner panels of home appliances, parts with high anti-corrosion requirements |
3. Common PPGI Grades (By Standard)
| Standard System | Common Grades | Description |
|---|---|---|
| China GB / Europe EN | DX51D+Z / DX51D+ZM | Most common commercial grade, for general bending, forming and roll forming |
| China GB / Europe EN | DX52D+Z / DX53D+Z | Drawing and deep-drawing grades for complex forming parts |
| China GB / Europe EN | S250GD+Z / S350GD+Z | Structural grades with higher yield strength for load-bearing components |
| Japan JIS | JIS G3312 CGCC | Most common color-coated steel grade for general construction and appliances |
| Japan JIS | CGC340 / CGC440 / CGC570 | Numbers indicate tensile strength (MPa); CGC570 corresponds to high-strength material such as G550 |
| USA ASTM | ASTM A755M CS-B | Commercial grade, widely used in building envelope systems |
| USA ASTM | SS255 / SS275 / SS550 | Structural grades; numbers indicate minimum yield strength (MPa) |






















