English
Traditional powder coating is mostly limited to single metal substrates, while modern industrial products adopt more and more composite materials such as plastic-metal, wood-metal and fiber composite boards. Different substrates have inconsistent thermal expansion coefficients and surface properties, leading to poor powder adhesion and easy peeling. This article analyzes the coating difficulties of different composite substrates, summarizes targeted pretreatment processes and formula matching schemes, and solves common defects such as poor adhesion, blistering and cracking of composite substrate coatings.
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.
Powder coating will inevitably age after long-term use, resulting in chalking, fading, cracking and peeling, which affects the protective and decorative effects. Most users lack scientific maintenance methods, leading to premature failure of coatings. This article systematically analyzes the aging mechanisms of indoor and outdoor powder coatings, summarizes the influence of ultraviolet radiation, temperature alternation, chemical erosion and human factors on coating aging. It provides targeted daily maintenance, regular inspection and repair schemes to help users delay coating aging and maximize the service life of powder coated products.
Many enterprises face blind selection problems when purchasing powder coatings, resulting in mismatch between powder performance and application scenarios, excessive cost waste or insufficient protective performance. This article summarizes a complete set of industrial powder coating selection guidelines, classifies and explains the applicable scenarios of epoxy, polyester, hybrid and functional powders. It matches targeted powder types according to different use environments such as indoor, outdoor, high temperature, humid and corrosive scenarios, helping enterprises select high-cost-performance powder products accurately and avoid quality risks and cost waste.
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.
Yellowing is a common quality defect of white and light-color powder coatings, which seriously affects the aesthetics and batch consistency of products. This article systematically analyzes three major causes of coating yellowing: process over-baking yellowing, raw material aging yellowing, and environmental photo-oxidation yellowing. It explains the internal mechanism of yellowing defects from resin decomposition, additive failure, and pigment aging, and provides targeted improvement schemes from formula optimization, process parameter adjustment, and storage management. Combined with TYOPSUN’s precise process control equipment, it helps manufacturers completely solve yellowing problems and stabilize light-color coating quality.
Insulating powder coating is a professional functional coating for electrical and power equipment, with excellent electrical insulation, high voltage resistance, and anti-leakage performance. This article introduces the core electrical performance indicators and industry certification standards of insulating powder, analyzes the insulation mechanism of high-resistivity resin and inorganic insulating fillers, and summarizes formula design key points and production process control difficulties. It focuses on the application value of insulating powder in power distribution equipment, electrical components, and new energy electrical facilities, and explains how TYOPSUN’s professional equipment ensures stable insulation performance of mass-produced products.
Batch quality inconsistency is a common problem restricting the standardized development of powder coating enterprises, mostly caused by non-standard production operations. This article formulates a complete set of standard operating procedures (SOP) for powder coating batch production, covering raw material inspection, batching and mixing, extrusion processing, milling classification, finished product inspection, and warehousing. It clarifies the operating standards, parameter ranges, and quality detection key points of each link, summarizes common operational errors and correction schemes, and helps manufacturers realize full-process standardized production and zero batch difference of products.
Over-spray is an inevitable waste in powder coating spraying construction, and traditional direct disposal causes serious material waste and environmental pressure. This article introduces efficient over-spray powder recycling and reuse technology, analyzes the quality differences between recycled powder and fresh powder, and summarizes impurity removal, screening, and proportioning reuse processes. It explains the quality control key points of recycled powder in storage, proportioning, and spraying, and introduces TYOPSUN’s high-efficiency powder recovery system, helping manufacturers maximize material utilization, reduce production costs, and realize green and low-carbon production.
Texture powder coatings are mainstream special-effect decorative powders, including wrinkle, sand grain, matte texture, and hammer finish series, widely used in high-end home appliances, hardware decoration, and industrial equipment. This article elaborates on the texture formation mechanism of different types of texture powder, analyzes the core formula design of texture agents and matting components, and summarizes key production process control points such as extrusion temperature, shear force, and milling particle size. It solves common mass production problems such as uneven texture, inconsistent grain depth, and blurred effect, and introduces TYOPSUN’s professional equipment solutions to ensure batch consistency of texture powder effects.
Spraying environment temperature and humidity are key external factors affecting powder coating construction quality, which directly determine powder fluidity, electrostatic adsorption performance, film leveling effect, and finished product yield. This article analyzes the influence mechanism of high humidity, low humidity, high temperature, and low temperature on powder spraying respectively, and explains common defects such as powder agglomeration, poor adhesion, orange peel, and foggy gloss caused by abnormal environmental parameters. It summarizes standardized environmental control standards for four seasons and practical adjustment schemes, helping manufacturers eliminate seasonal quality fluctuations.
High-temperature resistant powder coatings are specialized functional coatings for high-heat industrial environments, widely used in high-temperature equipment such as industrial furnaces, exhaust pipes, and engine accessories. This article analyzes the high-temperature resistance mechanism of silicone-based high-temperature powder coatings, elaborates on core formula design including heat-resistant resin selection, high-temperature stable pigments, and functional fillers. It summarizes key production process control points to avoid thermal attenuation of functional components, and sorts out applicable industrial scenarios and performance detection standards. Combined with TYOPSUN’s customized production equipment, it explains how to ensure the long-term stable high-temperature resistance of mass-produced powder products.
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 difficult problem of batch gloss inconsistency in powder coating mass production, which troubles most manufacturers. It analyzes the core factors affecting gloss stability: matting agent dispersion, extrusion temperature fluctuation, powder particle size difference, and curing parameter deviation. The article provides targeted control schemes for high-gloss, semi-matte, and full-matte powder respectively, and summarizes TYOPSUN’s standardized production process to eliminate gloss deviation, ensuring consistent gloss performance of each batch of powder.
This article focuses on particle size distribution (PSD), the core physical indicator determining powder coating quality. It systematically analyzes common particle size defects including excessive fine powder, oversized coarse particles, uneven particle concentration, and poor fluidity caused by unreasonable PSD. The article deeply analyzes the root causes from milling speed, classifier parameters, screen condition, and raw material hardness, and provides targeted equipment adjustment and process optimization schemes. It also summarizes TYOPSUN’s daily particle size control standards to help manufacturers achieve stable and qualified powder particle size.
This article targets the emerging new energy market, focusing on special powder coatings for power battery cabinets, energy storage shells, and photovoltaic supporting equipment. It analyzes the core performance requirements of new energy equipment coatings: electrical insulation, flame retardancy, anti-corrosion, temperature resistance, and weather resistance. The article elaborates on the formula design of insulating flame-retardant powder, production process control points, and industry certification standards, and introduces how TYOPSUN’s customized production lines meet the high-standard coating needs of the new energy industry.
This article introduces professional antibacterial and mildew-proof powder coatings suitable for high sanitary and high humidity environments such as hospitals, catering kitchens, bathroom facilities, and food processing workshops. It analyzes the antibacterial mechanism of inorganic silver-ion and zinc-ion antibacterial agents, explains the key points of formula compatibility and additive dosage control. The article solves common production problems such as antibacterial failure, mildew resistance attenuation, and color change, and introduces TYOPSUN’s precise mixing technology to ensure long-term stable antibacterial and mildew-proof performance of finished powder.
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.
This article focuses on wood grain imitation powder coatings widely used in architectural aluminum profiles and indoor decoration. It introduces two mainstream forming technologies: heat transfer wood grain powder and direct spray pattern powder, analyzes their respective advantages and application scenarios. The article explains the core formula design and production control points that affect wood grain simulation degree, clarity, and weather resistance, and solves common problems such as blurred grain, easy fading, and unnatural texture. It also introduces TYOPSUN’s process optimization scheme to improve the simulation degree and batch stability of wood grain powder.
This article deeply analyzes the production technology of high-content metal effect and pearlescent powder coatings, which are widely used in high-end home appliances, automobiles, and architectural decoration. It explains the difference between dry blending and bonding process for metallic powder, analyzes the causes of common defects such as uneven metal texture, color floating, and metallic fading. The article focuses on how to control bonding temperature, stirring speed, and screening precision to stabilize texture effect, and introduces TYOPSUN’s professional effect powder production line to ensure batch consistency of metallic finishes.
