Compliance & Certification | Technical Parameters “Low VOC” has become a standard selling point for coatings and colorants, but most users have only a vague concept of how VOC is actually measured, calculated, and what environmental labels really restrict. Different standards, sampling methods, and calculation bases can lead the same product to very different VOC […]
Compliance & Certification | Technical Application Industrial coatings and food packaging are the two colorant application scenarios with the greatest differences in compliance requirements: the former looks at China’s Ten-Ring Label and VOC limits, while the latter looks at FDA, EC 1935/2004, and other food contact regulations. The same colorant manufacturer must prepare two completely […]
Compliance & Certification | Technical Application Colorant export is never simply about “getting the goods there.” It is about “documents first, compliance first.” The EU market has three hard thresholds—REACH, RoHS, and EN71-3—while the United States has TSCA and Japan has CSCL. The absence of any one of these can lead to return shipments, notifications, […]
Over the course of a week, we moved from basic colorant concepts to coating color matching processes and construction implementation. There is a lot of information, but what is truly usable on site is often a table that can be quickly consulted. This article condenses the core points of Week One into a “Selection Quick […]
The most headache-inducing thing in color matching is not being unable to match accurately, but “there is always a little difference every time.” Where these color differences come from, how much is qualified, and how to manage them determine whether your delivery is stable. Starting from the core concept of ΔE, this article explains the […]
Common Quality Indicators of Coating Colorants and Key Points of Incoming Quality Control (IQC)
Colorant Color Becomes Lighter After Storage? These 3 Steps Help You Troubleshoot the Cause
Waterborne colorants use water as the continuous phase. Theoretically, the freezing point is lower than pure water, but in warehouse storage and transportation in northern winters, extreme low temperatures may still freeze them. What consequences freezing brings and whether they can be directly thawed for use are what many customers care about most in winter. […]
Filtration is the step most easily simplified in the colorant use chain and the step most likely to plant quality hazards. If the filter mesh is too coarse, particles, skin, and impurities enter the system, and the coating film shows graininess and color spots; if too fine, not only is filtration efficiency low, but effective […]
Containers are “globally mobile equipment,” exposed to long-term sunlight, salt spray, temperature differences, and mechanical impact. The weather resistance and corrosion resistance of the coloring layer are subject to extreme tests. If the wrong colorant is chosen, containers will fade and bloom not long after going to sea, and maintenance costs are extremely high. This […]