Paint-coated Steel Sheet

Paint-coated Steel Sheet is a composite material made by degreasing and phosphating a metal substrate (cold-rolled plate, galvanized plate or aluminum zinc plated plate, etc.), coating it with organic coating through roll coating or film coating process, and then baking and curing it. Paint-coated Steel Sheet Its core features and applications are as follows:

Core Features and Structure

1. Substrate and Lightweight

Paint-coated Steel Sheet The substrate is cold-rolled sheet, galvanized sheet or aluminum zinc plated sheet, with a thickness range of 0.15mm-1.5mm, which combines strength and lightweight advantages (with a self weight of only 1/5 of brick concrete structures), significantly reducing building loads.

Paint-coated Steel Sheet The commonly used sandwich panel structure (50-100mm thick) is composed of color steel plates and insulation fillers (rock wool, polyurethane, etc.), effectively avoiding the cold bridge effect. ‌

2. Coating performance

Corrosion resistance: Organic coatings (polyester/fluorocarbon/silicon modified resin, etc.) isolate the substrate from corrosive media, while fluorocarbon (PVDF) coatings have a durability of up to 20 years.

Decorative:Paint-coated Steel Sheet Customizable colors and patterns such as wood grain and cloth pattern.

Environmental protection technology: Emerging powder coating technology achieves "oil to powder" conversion, eliminating VOCs emissions from the source.

Application Domain Classification Table

Application Fields

1. Construction industry (accounting for 79%)

Paint-coated Steel Sheet Mainly used for roofs/walls in industrial plants, airports, and warehouses, with less use in civil buildings.

Outstanding construction convenience (such as rapid construction of emergency hospitals).

2. Household appliances and transportation (accounting for 12%)

Home appliance casings, ship interiors, vehicle components, etc.

3.Technology Trends

Intelligent Manufacturing

AI dynamic monitoring: Real time analysis of coating defects through thermal response maps to Paint-coated Steel Sheet achieve closed-loop quality control (such as the patented technology of Xinyu Color Plate in 2025).

·Process upgrade

High end Paint-coated Steel Sheet adopt three coating and three baking or four coating and four baking processes to improve coating uniformity.

·Environmental transformation

Promote the use of powder coating instead of solvent based coatings to achieve zero VOC emissions.