Green Chalkboard Steel Coil
Green chalkboard steel coils are pre-painted steel sheets specifically designed for educational green chalkboards. They feature a galvanized steel substrate coated with a functional green coating. Chalkboard manufacturers can purchase these steel coils or sheets from us (we can also cut the sheets to your desired length).
- Thickness: 0.09 – 1.0mm
- Length ≤ 1300mm
- Erasure and write resistance: ≥ 50,000 times
Ensure product quality and transportation
Unlike ordinary green color-coated steel coils used in construction, the selection criteria for PPGI steel coils intended for blackboards focus not only on color but also on the surface condition of the coating, writability, chalk erasure performance, processability, and batch-to-batch quality consistency.
Our green chalkboard steel coils feature a low-gloss coating, ensuring clear, glare-free chalk writing under classroom lighting. With a galvanized steel substrate, the finished sheets are magnetic and rigid.
Supply Specifications
| Product Name | Green Chalkboard Steel Coil |
| Product Type | Prepainted Steel Coil |
| Thickness | 0.09–0.10 mm |
| Width | ≤1300mm |
| Base metal | SGCC / DX51D / DX52D |
| Zinc coating | 30–275 g/m²（Z30–Z275） |
| Surface | Matte green (low gloss, anti-glare), traditional green color (gloss level selectable) |
| Surface hardness | ≥ 3H |
| Coating adhesion | Cross-cut adhesion test, grade 0-1 |
| Solvent resistance | ≥100 wiping cycles |
| Salt spray test | ≥72 hours without red rust |
| Top coating | 15–25 μm Chalk suitable resin / Polyester |
| Back coating | 5 – 14 μm PE / Epoxy primer |
| Coil ID | 508 / 610 mm |
| Coil weight | 2.5 – 3 tons or canbecustomized |
| Processing services | Slitting、Cutting、Sheet Processing |
| Application | Chalkboards, School Boards, Writing Boards |
| Certifications | ISO9001、CE、SGS |
| MOQ | 10 tons or a full container |
| Packaging | Standard export packaging (plastic film + moisture-proof paper + galvanized iron sheet) |
Advantages of our products
- Anti-glare matte surface: With its low-gloss finish, chalk writing appears clear under classroom lighting without glaring reflections, protecting your eyes during prolonged use (gloss level is customizable).
- Clean chalk erase: Chalk glides smoothly across the surface; when erased dry, it leaves no residue or noticeable powder marks, resulting in a uniform surface without streaks.
- Wear & scratch resistance: Pencil hardness ≥3–4H + wear and scratch resistance testing; withstands daily scratches and frequent erasing and rewriting.
Applications
| Application scenarios | Greenboard Steel Used | Why Choose It |
| Traditional Educational Greenboards | Matte Green | Chalk-writable, anti-glare |
| School Modular Blackboards / Sliding Blackboards | Matte Green | Can be paired with whiteboard steel to create a dual-sided panel |
| Magnetic Greenboards | Matte Green | Naturally magnetic substrate |
| Custom-Sized Blackboards (Classrooms / Conference Rooms) | Matte Green, available in cut-to-size sheets | Flat surface; laminated to prevent warping |
Green Color-Coated Steel Coils for Your Blackboards Manufacturing
We have a rigorous testing process, including writing tests, erasing tests, and wipe resistance tests. You can view our testing videos.
If you are manufacturing school blackboards, educational whiteboards, or other chalkboards, we welcome you to submit your raw material procurement requests to us.
Please provide the required thickness, width, green color code, substrate type, coating performance requirements, and purchase quantity. Based on our actual supply capacity and the technical requirements confirmed by both parties, we will provide products and quotation proposals tailored to your production plans.
