Our organic film treatment on the coated layer of the SuperGalum steel sheet, which is applied to the in-line coater, includes acryl resin organic film containing 1~2㎛ chromate. In comparison with the temporary corrosion resistant property of the conventional chromate applied in post-treatment, SuperGalum offers the following functions.

• High corrosion resistance
• Lubrication properties (No need for lubrication oil)
• Paintability
• Anti-fingerprint properties

Structure of organic films

Production process of organic film layers

Handling and Storage

• Please inspect the product immediately upon receipt.
• Use clean, dry gloves in order to prevent surface contamination.
• Equipment used in the handling of the goods must be clean. The contact surface must be smooth without any bumps in order to prevent damage to the coated layer. Special care must be made to prevent coil from rolling when put on the floor.

• The product must remain dry during transportation. Storage must take place inside a structure insulated from surrounding environment. Proper ventilation must be provided in case the product is stored high-temperature, high-humidity conditions.
• Sheet must be stored on a slant for the effective discharge of humidity that may occur.
• To prevent discoloration if the coil becomes wet, they must either be produced immediately or be unwound to dry.

Mechanical Jointing and Welding

• Material with weather resistance equal to that of SuperGalum must be selected for mechanical welding and metallurgic welding. In comparison with the welder tool tip of other coated steel sheet whose life span tends to decrease, welding SuperGalum can minimize such problems by modifying the tip shape of the coolant.
• SuperGalum must avoid contact with lead, bronze or graphite. Contact with such materials can result in red rust. Water falling from bronze sheet to SuperGalum sheet will accelerate local corrosion.
• Similar to aluminum coated steel sheet, soldering SuperGalum is difficult due to the aluminum oxide film on the surface. Use the aluminum steel sheet soldering and torch.
• Avoid using neutral silicon rubber sealant containing amino acid and acetic acid, which can accelerate corrosion at the beginning of the drying process.

Painting

• The surface must be clean, dry and free of scale. Grease and oil can be removed with a neutral solvent or paint thinner. Use a wire brush to remove corrosion and by-products.
• The use of Alkid or 100% acryl paint will yield satisfactory results. However, avoid mixing paint produced by different companies.

Use for livestock houses

• SuperGalum that has not undergone post-treatment should not be used in building barns. The discharge and by-products from animals expose SuperGalum to a highly corrosive environment, accelerating corrosion even when proper sealing and ventilation facilities are installed.

Alkali corrosion

• Due to the properties similar to those of aluminum coated steel sheet, discoloration is likely to occur if SuperGalum comes into contact with alkali material. Precautions must be taken.