Export PPGI steel strips and galvanized sheets to Panama
In May, the PPGI steel strips and galvanized sheets ordered by a Panamanian customer were shipped by Wanzhi Steel as scheduled. The cooperation was very smooth. The details of the project are recorded below.

Galvanized sheet ready for loading

Slit PPGI steel coil
Customer Background
The client is engaged in the construction and building materials business in Panama, mainly serving local industrial plants, storage facilities, and residential projects. Due to the humid climate in Panama, the corrosion resistance of steel is required to be high, so the client needs high-quality black PPGI steel strip and galvanized sheet for roofing, wall panels, and steel structure manufacturing.
After market research, the client finally chose to cooperate with us because we can provide color-coated coils and galvanized sheets that meet ASTM standards and have perfect export experience.
Order details
- Products: Black coated galvanized steel strip (PPGI), galvanized steel sheet (GI).
- Specifications: PPGI thickness 0.4mm, width 1000mm, PVDF coating, GI sheet thickness 1.0 mm, width 1250mm, Z120 galvanized.
- Quantity: PPGI 95 tons, GI 89 tons.
- Use: PPGI is used for local industrial plant roofs & walls, GI sheet is used for steel structure frames & enclosures.

RAL9005 PPGI coil ready for slitting

Regular zinc spangle Z120 galvanized sheet
Project Production
- Raw material procurement: Select high-quality cold-rolled substrate (SPCC) to ensure surface flatness. The galvanized sheet adopts Z120 galvanized layer (120g/m² on both sides) to ensure the corrosion resistance of the product.
- Galvanizing treatment: Continuous hot-dip galvanizing is used for the cold-rolled substrate SPCC to ensure uniform adhesion of the zinc layer, in line with ASTM A653 standards.
- Color coating process: Degreasing and phosphating are performed for pre-treatment, and then primer + topcoat are applied. PVDF coating is used, RAL 9005 black, which is resistant to UV and aging.
- Baking and curing: High-temperature baking ensures the hardness and durability of the coating.
- Striping and coiling: The color-coated coil is cut into 29mm,32mm, and 38mm widths according to customer requirements and coiled into steel coils.
- Cutting: Cut the galvanized coil of standard zinc spangle into galvanized sheets with a width of 1220 mm and a length of 2443 mm.

Prepare for slitting

Professional slitting equipment

PPGI Steel coil in stripping
Wanzhi Steel QC department
To ensure that the products meet the needs of the Panamanian market, we conduct strict tests:
- Galvanized layer test: zinc layer weight and uniformity.
- Corrosion resistance test: salt spray test on GI board to ensure the quality of the zinc layer.
- Color coating adhesion test: cross-cut method, ASTM D3359.
- Color difference test: spectrometer comparison RAL 9005 standard.
- Dimension tolerance check: thickness and width meet ±0.02mm.

32mm color coated steel strip

Plate thickness inspection

Length measurement
Packaging and Shipping
Packaging Method
- Steel coil packaging: inner layer of moisture-proof paper + outer layer of iron strapping to prevent moisture during sea transportation.
- Pallet fixing: Each coil is bundled separately to avoid collision during transportation.
Transportation Solutions
- From Qingdao Port, China to Colón Port, Panama, 20GP container shipping, the transportation time is about 27 days.

Packaging of PPGI Rolls

Packaged galvanized sheet
Uses of GI sheet & PPGI strip in Panama
Main uses of galvanized steel sheets
- Building structures: light steel workshops, warehouse frames. Thanks to its strong corrosion resistance and long service life.
- Fences and guardrails: highway sound insulation panels, industrial park fences. Thanks to its durability and easy installation.
- Home appliance manufacturing: air conditioner outdoor units, ventilation ducts. Thanks to its light weight and high strength.
- Industrial equipment: liquid storage tanks, mechanical housings, and other fields. Thanks to its machinability and corrosion resistance.
Main uses of prepainted galvanized steel strips
- Industrial roofs & walls: Strong weather resistance, its coating can provide a variety of color options to meet the personalized needs of the building, while improving corrosion resistance.
- Commercial buildings: modern style office buildings, shopping mall facades. Panama billboards, signboards and display racks.
- Home appliance and furniture manufacturing: awnings, garage doors, home appliance housings, furniture panels, etc. It has good processing performance, a beautiful surface, and the coating can provide rust prevention, wear resistance, and other functions.

Corrugated Metal Roof Greenhouse

Electronic devices

corrugated roofing
Case summary
This order was successfully delivered, and the customer was very satisfied with the product quality and delivery efficiency. Through strict quality control, customized production, and reliable logistics, we helped customers reduce procurement costs and established a long-term cooperative relationship. The customer has expressed that he will continue to purchase white and blue PPGI coils for more construction projects.
If you are also interested in galvanized sheets or PPGI coils, please contact Wanzhi Steel.
Our WhatsApp: 86 15138685087
Website: https://wzppgi.com