What Exactly Is PPGI Coil and How to Tell it form PPGL

Prepainted galvanized steel coil or PPGI is also known as color coated steel, coil coated steel, or pre-coated steel. The steel coils are dipped in hot zinc to make them rust and corrosion-resistant.

Manufacturers make your zinc-coated steel substrate using a continuous galvanizing line. This galvanizing line could include another painting section where steel coils undergo another coat of metallic substrate.

The metallic coated steel then goes through a number of cleaning procedures, and pre-treatment solutions, and lastly gets multiple layers of organic coatings, including laminates, vinyl dispersions, and paint. This continuous technique of applying different coatings is recognized as coil coating. Therefore, the steel coil doesn’t require painting or finishing when utilized in finished products.

PPGI Manufacturing Process

PPGI VS PPGL

One reason people assume that prepainted galvanized steel coil and prepainted galvalume steel are identical is simply that they are useful in several industries, like construction, appliance industry, transportation, advertising, and more. However, they are two different kinds of color-coated steel.

To start with, they use different substrates. PPGI uses galvanized sheets because of the base metal. These people have a zinc coating throughout in order to avoid moisture, rust, and corrosion from destroying the steel’s surface. On the flip side, the substrate for prepainted galvalume steel is a mix of 1.6% silicon, 43.3% zinc, and 55% aluminum. Their substrate influences their applications boasting that further differentiate the 2 kinds of steel.

Difference Between PPGI and PPGL Sheets

The service life of these two types of steel also varies because of the substrates. Both substrates aim to prolong the steel’s service life by protecting them from rust and corrosion. Zinc is the perfect substrate for protecting steel from rust. PPGI has near 99% zinc in its substrate, but PPGL merely has 43.3%. This supplies PPGI with a prolonged service life in comparison with PPGL. Although aluminum and silicone are great alloys, they aren’t the best at protecting steel from corrosion or rust. They eventually degrade over time, thus exposing the steel to moisture which leads to corrosion.

There is also a difference between the bodyweight of PPGI and PPGL. Aluminum, zinc, and silicon substrate are heavier than zinc substrates. This makes PPGL heavier than PPGI. But does which make PPGL better than PPGI? Not always. Most industries prefer PPGI simply because of its ability to withstand rust and corrosion for years. The strength of the steel is essentially exactly like PPGL. A PPGL sheet covers just as much as 3% extra space compared to a PPGI sheet.

Are you capable to find the distinction between a PPGI as well as a PPGL sheet just by considering them? Yes, it’s possible. PPGL sheets are smoother than PPGI sheets. That’s because aluminum and zinc form a greater adhesive than zinc alone.

Galvalume Steel Coil

If you are searching for high-quality PPGI coils, then Wanzhi Steel should rank high on your list. It offers various steel pipes, wires, coils, and sheets. You can anticipate quick delivery in the company because it has numerous distribution centers throughout the country.