Production Core Advantages

• Acid rain resistance:

Coating Protection Mechanism: Acid rain can easily form in environments with high levels of industrial emissions or pollutants. Acid penetration will form on the surface of pre-coated steel and accelerate corrosion, forming blistering, spalling, etc.

•Anti-UV:

Coating protection mechanism: Under the condition of ultraviolet rays or strong sunlight, the pre-coated board will undergo chalking and denaturation, manifested as discoloration and loss of luster, and quickly lose the coating.

• Resistance to heat and humidity:

Coating protection mechanism: In a hot and humid environment, the high osmotic pressure of water vapor will accelerate the penetration, forming denaturation of the coating film, and then corroding the substrate, and bubbles and peeling will appear.

• Low temperature resistance:

Coating protection mechanism: Most coatings can maintain stable processing performance above 0 degrees, but in alpine regions where the temperature is lower than 20-40 degrees, ordinary coatings will become brittle, bend or even fall off, so the protective effect is completely lost.

Application

Prepainted galvanized/galvalume steel is used for roof structures, balconies, window frames, screens and electrical equipment. Painted steel can be formed into almost any shape and offers excellent weather resistance, excellent longevity and texture options.

QC

• Surface testing.

• The salt spray test is carried out in a special salt spray environment, simulating the marine climate, and is used to check the salt spray corrosion resistance performance of GI and PPGI, and to evaluate the quality of the protective coating process.

• Flexibility impact tester used to evaluate the resistance of the leotard coating to deformation, cracking or dropping.

• Coated cup pull tester is used to evaluate the slow deformation of the catsuit in the case of the coating has the ability to resist cracking or dropping.

• Zinc coating test

Our minimum zinc and AZ layers are 30g/m2. We only focus on medium and high quality products.