In plastics manufacturing, few things cause more hidden problems than moisture—especially when it comes to color consistency and surface appearance. Even a small amount of residual moisture in your resin can create visible defects, internal weaknesses, and costly rework. Many resins (especially hygroscopic polymers) naturally absorb moisture from the air. When these resins are processed at high temperatures without proper drying, the absorbed water doesn’t simply evaporate. Instead, it reacts with [...]

When it comes to plastics manufacturing, selecting the right pigment isn’t just about getting the color right. It’s about ensuring that the color stays right throughout the process and one of the most critical factors influencing color stability is processing temperature. Different pigments react differently under high-heat vs. low-heat conditions and understanding that behavior is essential for achieving consistent, high-quality results. Plastics are processed across a wide range of temperatures depending [...]

Color plays a critical role in both extrusion and injection molding—but the challenges in achieving consistent color differ significantly between the two processes. Knowing what to look out for can save time, scrap, and customer complaints. Key Color Challenges in Extrusion Line Speed VariabilityFaster or uneven extrusion speeds can affect pigment distribution, leading to inconsistent color bands. Melt Temperature FluctuationsEven slight temperature inconsistencies can alter color, especially with heat-sensitive pigments. [...]