Black Painted Steel Strapping: Painted & Waxed, in Black and Green
JUHONG makes black painted steel strapping in Changzhou, China, and has made steel strap since 1997. Every size and grade on our spec sheet can be painted black or green, then waxed, and every coil is wrapped in anti-rust paper for export. Distributors, importers and mills buy it by the container for heavy-duty industrial packaging, together with the seals that fit it.
Trusted by Global Industrial Buyers
What Is Black Painted Steel Strapping?
Black painted steel strapping is cold-rolled steel strip that is slit to width, heat treated, painted on both faces and both edges, and then waxed. It is also known as black metal strapping or black steel band, and in the trade the finish is simply called “painted and waxed”. It is a packaging steel made to hold heavy loads securely on long logistics routes.
What the Paint and the Wax Each Do
The paint coating gives the steel corrosion resistance in storage and transport, and gives the strap an even, durable black painted finish. The wax adds a second layer of rust protection, and it also lubricates the strap. In friction-type tensioners the two layers of strap slide over each other as they are pulled tight, so waxed steel strapping tensions smoothly without binding. ASTM D3953 asks for a wax coating on regular duty strap for this reason.
Black or Green: Choosing the Color
Black is the standard color, and ISO 24259:2022 names black as the normal paint color, with other colors by agreement. Green painted steel strapping uses the same steel, sizes and strength. Buyers pick green to match their own brand or a customer’s color code. Green is made to order, and we agree the minimum quantity with you when you order.
Black Painted vs Blue Tempered vs Galvanized Steel Strapping
Three finishes cover most export and domestic orders. They differ in durability, so choose by storage time, climate and shipping route.
Black or green painted & waxed
Is Black Painted Steel Strapping Rust-Proof?
No steel strap finish is rust-proof. The paint and wax slow corrosion, but bare steel can still rust where the coating is scratched or cut. Painted strap is the usual choice for containers and humid storage. If coils or strapped loads will stand outdoors or near the sea for long periods, choose galvanized strap.
Black Painted Steel Strapping Sizes & Specifications
Every size and grade below can be painted black or green. Break strength depends on width, thickness and tensile class.
Break Strength by Size and Tensile Class
Swipe sideways to see every grade →
| Width | Thickness | Terra650 N/mm² | Ridge750 N/mm² | Pivot830 N/mm² | Duro930 N/mm² | Nexa980 N/mm² | Length / Weight | Coil Winding |
|---|---|---|---|---|---|---|---|---|
| 1/2 in12.7 mm | 0.015 in0.38 mm | 706 lbs3,137 N | — | — | — | — | 39.2 ft/lb26.5 m/kg | M/R |
| 1/2 in12.7 mm | 0.020 in0.51 mm | 947 lbs4,210 N | 1,093 lbs4,858 N | 1,209 lbs5,376 N | 1,355 lbs6,024 N | 1,428 lbs6,347 N | 29.4 ft/lb19.8 m/kg | M/R/O/J |
| 1/2 in12.7 mm | 0.023 in0.58 mm | 1,077 lbs4,788 N | 1,243 lbs5,525 N | 1,375 lbs6,114 N | 1,541 lbs6,850 N | 1,624 lbs7,219 N | 25.6 ft/lb17.2 m/kg | M/R/O/J |
| 5/8 in16 mm | 0.015 in0.38 mm | 889 lbs3,952 N | — | — | — | — | 29.6 ft/lb20.0 m/kg | M/R |
| 5/8 in16 mm | 0.020 in0.51 mm | 1,193 lbs5,304 N | 1,377 lbs6,120 N | 1,524 lbs6,773 N | 1,707 lbs7,589 N | 1,799 lbs7,997 N | 23.6 ft/lb15.9 m/kg | M/R/O/J |
| 5/8 in16 mm | 0.023 in0.58 mm | 1,357 lbs6,032 N | 1,566 lbs6,960 N | 1,733 lbs7,702 N | 1,941 lbs8,630 N | 2,046 lbs9,094 N | 20.5 ft/lb13.8 m/kg | M/R/O/J |
| 3/4 in19 mm | 0.020 in0.51 mm | 1,417 lbs6,299 N | 1,635 lbs7,268 N | 1,809 lbs8,043 N | 2,027 lbs9,012 N | 2,136 lbs9,496 N | 19.6 ft/lb13.2 m/kg | M/R/O/J |
| 3/4 in19 mm | 0.023 in0.58 mm | 1,611 lbs7,163 N | 1,859 lbs8,265 N | 2,058 lbs9,147 N | 2,306 lbs10,249 N | 2,429 lbs10,800 N | 17.1 ft/lb11.5 m/kg | M/R/O/J |
| 3/4 in19 mm | 0.028 in0.71 mm | 1,973 lbs8,769 N | 2,276 lbs10,118 N | 2,519 lbs11,197 N | 2,822 lbs12,546 N | 2,974 lbs13,220 N | 14.2 ft/lb9.6 m/kg | M/R/O/J |
| 3/4 in19 mm | 0.031 in0.79 mm | 2,195 lbs9,757 N | 2,532 lbs11,258 N | 2,803 lbs12,458 N | 3,140 lbs13,959 N | 3,309 lbs14,710 N | 12.5 ft/lb8.4 m/kg | M/R/O/J |
| 3/4 in19 mm | 0.035 in0.89 mm | 2,473 lbs10,992 N | 2,853 lbs12,683 N | 3,157 lbs14,035 N | 3,538 lbs15,726 N | 3,728 lbs16,572 N | 11.1 ft/lb7.5 m/kg | M/R/O/J |
| 1 in25 mm | 0.031 in0.79 mm | 2,888 lbs12,838 N | 3,332 lbs14,813 N | 3,688 lbs16,393 N | 4,132 lbs18,368 N | 4,354 lbs19,355 N | 9.5 ft/lb6.4 m/kg | M/R/J |
| 1 in25 mm | 0.035 in0.89 mm | 3,253 lbs14,463 N | 3,754 lbs16,688 N | 4,154 lbs18,468 N | 4,655 lbs20,693 N | 4,905 lbs21,805 N | 8.5 ft/lb5.7 m/kg | M/R/J |
| 1-1/4 in31.75 (32) mm | 0.028 in0.71 mm | 3,296 lbs14,653 N | 3,803 lbs16,907 N | 4,209 lbs18,710 N | 4,716 lbs20,965 N | 4,970 lbs22,092 N | 8.5 ft/lb5.7 m/kg | M/R/J |
| 1-1/4 in31.75 (32) mm | 0.031 in0.79 mm | 3,668 lbs16,304 N | 4,232 lbs18,812 N | 4,683 lbs20,818 N | 5,248 lbs23,327 N | 5,530 lbs24,581 N | 7.4 ft/lb5.0 m/kg | M/R/J |
| 1-1/4 in31.75 (32) mm | 0.035 in0.89 mm | 4,132 lbs18,367 N | 4,768 lbs21,193 N | 5,276 lbs23,454 N | 5,912 lbs26,279 N | 6,230 lbs27,692 N | 6.7 ft/lb4.5 m/kg | M/R/J |
| 1-1/4 in31.75 (32) mm | 0.040 in1.00 mm | — | 5,357 lbs23,813 N | 5,928 lbs26,353 N | 6,642 lbs29,528 N | 7,000 lbs31,115 N | 5.9 ft/lb4.0 m/kg | R/J |
| 1-1/4 in31.75 (32) mm | 0.044 in1.10 mm | — | 5,893 lbs26,194 N | 6,521 lbs28,988 N | 7,307 lbs32,480 N | 7,700 lbs34,227 N | 5.3 ft/lb3.6 m/kg | R/J |
| 2 in50 mm | 0.047 in1.20 mm | — | — | — | — | 8,400 lbs37,338 N | 3.1 ft/lb2.1 m/kg | R/J |
UltiMax High Tensile, High Elongation
| Width | Thickness | Strengthlbs / N | Tensile ClassN/mm² | Elongation | Length / Weight | Coil Winding | Standard |
|---|---|---|---|---|---|---|---|
| 3/4 in19 mm | 0.031 in0.79 mm | 3,377 lbs15,010 N | 1,000 | ≥ 10% | 12.5 ft/lb8.4 m/kg | R/O/J | ASTM & EN |
| 1-1/4 in31.75 mm | 0.031 in0.79 mm | 5,643 lbs25,083 N | 1,000 | ≥ 10% | 7.4 ft/lb5.0 m/kg | R/O/J | |
| 3/4 in19 mm | 0.031 in0.79 mm | 3,039 lbs13,509 N | 900 | 6.5–12% min | 12.5 ft/lb8.4 m/kg | R/O/J | |
| 1-1/4 in31.75 mm | 0.031 in0.79 mm | 5,078 lbs22,574 N | 900 | 6.5–12% min | 7.4 ft/lb5.0 m/kg | R/O/J |
Average break strength of one strap. Width tolerance ±0.10 mm. Length / Weight shows how much strap you get per pound or kilogram. Coil winding: M = mini, R = ribbon wound, O = oscillated wound, J = jumbo. A dash means the size is not made in that grade.
Strength Grades Available in Black and Green
Every grade can be supplied black painted and waxed: Terra 650, Ridge 750 and Pivot 830 N/mm² for regular duty steel strapping, Duro 930 and Nexa 980 N/mm² for high tensile steel strapping, and our UltiMax high tensile, high elongation strap at 900 or 1,000 N/mm².
Coil Formats: Ribbon, Oscillated, Jumbo & Mini
Black painted steel strapping comes in the same four coil formats as the rest of our range. Match the format to your tool and dispenser.
Ribbon Wound (RW) Coils
25 to 50 kg per coil, inside diameters of 200, 300 or 406 mm, for manual strapping tools and semi-automatic tools.
Oscillated Wound (OW) Coils
40 to 50 kg on a 406 mm inside diameter, for pneumatic tools and long shifts. Needs an oscillated-coil dispenser.
Jumbo Coils
170 to 1,000 kg on 406 or 610 mm inside diameters, for automatic strapping lines.
Mini Coils
Under 25 kg, for small orders, field work and trials.
How We Paint, Wax and Test Our Strapping
Our line runs in one pass: uncoiling, slitting, edge smoothing to remove burrs, heat treatment, cooling, painting, drying, waxing, drying, rewinding and packing. Because the strap is painted after slitting, the paint covers both edges as well as both faces.
Uncoiling · Slitting · Edge smoothing to remove burrs
Heat treatment · Cooling
Painting · Drying · Waxing · Drying
Rewinding · Packing in anti-rust paper
Paint Coating Thickness, Tested by SGS
We keep the paint coating at 3 to 6 µm on each side. ISO 24259:2022, the international standard for steel packaging strap, asks for at least 3 µm, and China’s GB/T 25820-2025 for at least 0.5 µm. In May 2025, SGS measured our 32 × 0.8 mm black strap at five points under the microscope (GB/T 6462-2005) and found 3.44 to 4.40 µm, with an average of 3.82 µm.
We do not paint thicker than that on purpose. A heavy paint layer is harder to keep adherent, and paint that flakes off builds up in the feed wheels and sealing heads of automatic strapping machines.
In-Line Checks Every Two Hours
Every two hours, inspectors take 10 coils from the line and check width, thickness, tensile strength, bend performance, paint coating thickness and salt spray resistance. A failed bend or tensile result stops the line.
What Black Painted Steel Strapping Is Used For
Buyers use it for securing and bundling heavy items that travel by sea or sit in humid storage: steel coils, wire and strand coils, pipes and profiles, copper cathodes, timber and lumber, glass in wooden crates, bricks and other construction materials. It is also used for unitizing palletized loads and for securing crates inside containers. The paint keeps the strap looking clean on the load. For more packaging applications, see our steel strapping page.
How We Pack Black Painted Steel Strapping Coils for Secure Export Cargo
Our export packaging keeps coils dry from the factory to your warehouse. Every coil is wrapped in anti-rust paper as standard. For sea freight, each pallet also gets a rust-preventive desiccant, VCI anti-rust film and an outer layer of moisture-resistant wax paper, held with four straps on a fumigation-free wooden pallet or a steel pallet. Tell us how you want your coils labeled, and we will confirm what we can supply under your brand. Ask for a container loading plan with your quotation.
Coils on the Pallet
Coils are stacked on a fumigation-free wooden pallet or a steel pallet.
Individual Packing
Each coil is wrapped on its own in anti-rust paper.
Desiccant
A metal rust-preventive desiccant goes inside each pallet.
VCI Plastic Film
The coils are enveloped in VCI anti-rust film.
Humidity-Proof Wax Paper
Moisture-resistant wax paper covers the outside, with four straps for reinforcement.
Delivery
Packed pallets are loaded into the container by forklift.
What to Put on Your Purchase Order
Send these details and you will get an exact quote and the right strap.
Width and thickness, in inches or millimeters
Grade or required break strength
Color: black or green
Coil format and inside diameter: RW, OW, jumbo or mini
Coil weight and quantity
Packing: standard anti-rust paper, or extra VCI paper or film
Coil labels: our label, or your brand (we confirm what we can supply)
Seal type and size, or your tool model
Destination port, and whether you want samples first
Seals and Tools for Painted Strap
We make galvanized and plain cold-rolled steel strapping seals, and we can ship them in the same container as your black painted steel strapping. Seal width matches the width of the strapping band, and the seal style follows your tool: push type, snap-on, thread-on or open seals for manual sealers, and magazine seals for machines. Send us your tool model and we will confirm the strap and seals that fit. Tensioned metal strapping can spring back when it is cut, so use a proper strap cutter and wear gloves and eye protection.
Switching Suppliers? Match the Painted Strap You Use Now
Whether you resell strap or run it on your own packing line, send a photo of your current coil label or spec sheet. We will match width, thickness, grade, color and coil format, and send samples to test in your own tools and machines. Distributors and importers can combine painted strap, seals, PET strapping and stretch film from our factory in one container. Minimum quantities and lead time depend on size, color and volume, so we confirm them with your quote.
Black Painted Steel Strapping FAQ
Short answers to the questions buyers ask us about painted strap.
Is black painted steel strapping rust-proof?
No. The paint and wax slow corrosion, but scratched or cut areas can rust. For long outdoor or coastal storage, choose galvanized strap.
Black painted or galvanized steel strapping for sea freight?
Painted and waxed strap is the usual choice for container shipments and humid warehouses. Choose galvanized when strapped loads will stand outdoors or near the sea for months.
What is the difference between black painted and blue tempered steel strapping?
Blue tempered strap has only a thin oxide layer from heat treatment and suits indoor, short-route use. Black painted steel strapping adds a paint layer on both faces and edges for export and humid storage.
Is the paint on both sides and on the edges?
Yes. We paint after slitting, so the paint covers both faces and both edges.
How thick is the paint coating?
3 to 6 µm on each side, which meets ISO 24259:2022 (at least 3 µm per side). SGS measured our 32 × 0.8 mm black strap at 3.44 to 4.40 µm, with an average of 3.82 µm. We keep the paint in this range because a thicker layer is harder to keep adherent and can flake off in automatic strapping machines.
Which sizes and grades can be painted?
All of them, from 1/2 in to 2 in wide and from regular-duty to high tensile grades.
Do you make green painted steel strapping?
Yes. Green has the same sizes and strength as black. We agree the minimum quantity with you when you order.
Can you customize the color, labels or packing?
Yes. We paint black as standard and green to order, print your brand on coil labels when we can supply it, and add VCI paper or film on request.
Which seals should I use with painted strap?
Seals of the same width, in the style your tool needs. We supply galvanized and cold-rolled seals and can ship them with the strap.
Get a Black Painted Steel Strapping Quote
Send us your size, grade, color, coil format, quantity and destination port, or a photo of your current coil label. We will reply with a quotation, matching seals and a sample plan.
- Strap width, thickness and grade
- Color (black or green) and coil format
- Quantity and destination port
- Or a photo of your current coil label
Request a Quotation
Fields marked * are required. You can attach your coil label or specification sheet.