High-Quality Prepainted GI Steel Coil – Definition & Applications


High-Quality Prepainted GI Steel Coil (PPGI) and Prepainted Galvalume Steel Coil (PPGL) are color coated steel products manufactured by applying organic coatings over galvanized or galvalume substrates. With superior corrosion resistance, vibrant surface colors, and long durability, these coils are widely used in construction, appliances, transportation, furniture, and industrial equipment.


PPGI vs PPGL – Key Differences


TypeSubstrateFeatureApplications
PPGI (Prepainted Galvanized Iron)Galvanized steel (GI)Zinc layer protection + paint coatingRoofing, wall cladding, appliances
PPGL (Prepainted Galvalume)Galvalume steel (GL)Al-Zn coating with superior corrosion resistanceRoofing, automotive, industrial panels


High-Quality Prepainted GI Steel Coil – Advantages


Excellent Corrosion Resistance: 3–5 times longer life than bare galvanized steel.

Aesthetic Variety: Wide range of RAL colors and surface textures.

Lightweight & Strong: Reduces structural load.

Easy Fabrication: Suitable for bending, stamping, profiling, welding.

Eco-Friendly: Pre-coated process reduces secondary painting pollution.


High-Quality Prepainted GI Steel Coil – Specifications


ItemRange / Options
SubstrateGI / GL
Thickness0.12 – 1.2 mm
Width600 – 1250 mm (up to 1500 mm)
Coating thicknessTop: 10–25 μm, Back: 5–15 μm
Paint systemsPE, SMP, HDP, PVDF
ColorsRAL / Customized
Coil weight3–8 MT
ProtectionPE film, waterproof packaging, palletized


High-Quality Prepainted GI Steel Coil – Application Industries


Construction: Roofing sheets, wall panels, garages, fences.

Appliances: Refrigerator panels, washing machine shells, AC casings.

Transport: Automotive parts, shipping containers, railway carriages.

Furniture & Decoration: Cabinets, ceilings, lighting, doors.

Industrial Use: Storage racks, machinery housing, HVAC panels.


High-Quality Prepainted GI Steel Coil – Quality Testing


Test ItemMethodStandard
Coating AdhesionCross-cut testASTM D3359
Bend TestT-bendEN 13523
Impact ResistanceImpact testASTM D2794
Salt SprayCorrosion testASTM B117
Color DifferenceSpectrophotometerISO 7724


CONTACT US
NameRequiredNameCommit exception
MobileRequiredMobileCommit exception
EmailRequiredEmailCommit exception
MessageRequired
版权所有 © Tisco Group
CONTACT US
NameRequiredNameCommit exception
MobileRequiredMobileCommit exception
EmailRequiredEmailCommit exception
MessageRequired