alt spray corrosion is the most severe industrial corrosion form, widely existing in coastal areas, chemical plants and marine engineering environments. Ordinary powder coatings are prone to blistering, rusting and peeling in high-salt fog environments. This article deeply analyzes the salt spray corrosion penetration mechanism of powder coatings, summarizes the failure causes of coating films in salt spray tests, and proposes multi-dimensional optimization schemes including formula upgrading, pretreatment standardization and film thickness control. It guides manufacturers to greatly improve the salt spray resistance of powder products and meet heavy-duty anti-corrosion engineering standards.
Driven by global dual-carbon policies and manufacturing upgrading, the powder coating industry is undergoing comprehensive structural transformation in 2026. The industry development focus is shifting from simple oil-to-powder replacement to green low-carbon, intelligent manufacturing and high-functional innovation. This article analyzes the three core development trends of the powder coating industry: energy-saving low-carbon process upgrading, intelligent automated production transformation, and diversified functional powder iteration. It predicts the future market layout and technical competition direction, providing industry reference for powder manufacturers and coating processing enterprises.
Pinhole defects are one of the most common and troublesome surface problems in powder coating production, which seriously damage the compactness, aesthetics, and anti-corrosion performance of coating films. This article systematically classifies the core causes of pinholes from four dimensions: raw material characteristics, workpiece pretreatment, curing process parameters, and spraying operation specifications. It analyzes the internal mechanism of pinhole formation caused by moisture, volatile impurities, uneven powder dispersion, and unreasonable temperature rise curves. Meanwhile, it provides targeted, operable optimization schemes and standardized production processes, combined with TYOPSUN’s professional equipment optimization solutions, helping manufacturers completely solve pinhole defects and improve finished product qualification rate.
This article focuses on the national mainstream "oil-to-powder" transformation trend of industrial steel structures, analyzing the policy background, environmental advantages, and performance upgrades of replacing traditional solvent-based paint with powder coating. It details the anti-corrosion mechanism, film-forming characteristics, and edge coverage advantages of steel structure special powder coatings. The article sorts out standardized production processes and on-site coating specifications for heavy-duty anti-corrosion steel powder, and explains how TYOPSUN’s heavy-duty powder production equipment meets the high weather resistance and thick-film requirements of steel structure engineering.