Hot Rolled Roofing 0.1mm PPGI Color Coated Sheets

Black rust
The protective oxide film that forms on the surface of Aluzinc during open exposure to the atmosphere gives the fabric a really long useful life in air. If water or moisture penetrates between tightly packed products, like gutters, rapid corrosion will happen . thanks to the
limited access to oxygen, the oxide film won't re-form sufficiently quickly, and corrosion attack will occur. during this case, the products of corrosion are going to be black and are referred to as black rust. Black rust is generally very thin and doesn't affect the anti-corrosion properties of the coating, and is merely an aesthetic blemish.

SPT (surface protection treatment)
SPT treatment provides excellent protection against

fingerprinting during handling of the products. Enhanced anti-corrosionprotection SPT also provides enhanced anticorrosion protection during transport and storage. The protection against
discoloration on contact with stagnant water is substantially improved.
The SPT coating doesn't have a big effect on the technical useful lifetime of the products, but it provides a finer surface over a extended period of your time . Aluzinc or hot-dip galvanized steel?

Outdoor exposure tests are ongoing in Scandinavia for nearly 20 years and have demonstrated that the corrosion rate of Aluzinc is 3-7 times less than that of hot-dip galvanized steel.

• 3 times longer during a rural environment
• 4 times longer in an urban environment
• 4 times longer during a marine environment
• 7 times longer in an industrial environment

Similar results are obtained in studies that are ongoing for quite 30 years within the USA, during which Aluzinc was compared with hot-dip galvanized steel. These confirm that Aluzinc is 3-7 times better.

Q1: How can I buy products in my country?
A1: Please send us an inquiry or e-mail, we will reply to you and send you a trade assurance order if you need.
Q2: How long does it take to get the product if I place an order
A2: A: For stock products, will make shipments in 5- 7 days after receiving deposit or receiving L/C; for products need new production for common materials, usually make shipments in 15-20 days; for products need new production for special and rare materials, usually need 30-40 days to make shipment.
Q3: How to make payment?
A3: First send us an inquiry, and we will reply with our quotation. If our price suits you, we will prepare proforma invoice with our banking detail.
Q4: Can you do customization & reproduction if I provide a photo?
A4: Yes