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Galvalume steel, PPGL, is coated with aluminum, zinc, and a small amount of silicone. This provides superior corrosion resistance and durability over the typical galvanized coating. This is the biggest difference between PPGI steel and PPGL, which is the reason for the differences in many features such as weight, product life, appearance, price, and applications.
PPGI/PPGL/GI/GL/CR/ CORRUGATED steel sheet coil
Thickness: 0.12-2.00mm
Width: 600-1250mm
Coil ID: 508-610MM
Coil Weight:3-8tons
Color: RAL Color
Zinc coating: 40-600g/m2
Certificate: ISO9001,SGS,CE,BV
Raw Material: SGCC, SPCC, DC51D, SGHC, A653
Surface Treatment: unoil,dry,chromate passivated,non-chromate passivated
Application
Building industry ,structural use, roofing, commercial use, household appliance, industry facilities, office buildings
Service Life
Both zinc and the aluminum zinc coating help to protect metal against rusting to prolong product service life. With PPGI,
when the zinc coating corrodes, the base metal will become damaged. A galvanized PPGI sheet may last approximately 10 to 15 years.
With the aluminum zinc alloy on PPGL, the aluminum rich material will corrode slowly while the zinc rich portion will corrode preferentially.
This provides added corrosion resistance over strictly the zinc coating of PPGI. PPGL can last up to three times longer than PPGI.
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