Plastic Processing & Additives Knowledge Hub
Practical explanations of common production defects, how to start diagnosis, and how to test the right additive before ordering — organized by topic.
Film problems
- Why bubbles and white spots appear in plastic film — moisture or processing?A practical look at the causes of bubbles and white spots in film, and how to start diagnosis before making big changes.
- Why film layers block after winding — and when Anti-Block helpsWhen Anti-Block helps, how winding and thickness relate to the problem, and the difference from Slip.
Appearance and color
- Why white plastic yellows — optical brightener vs white masterbatchCommon reasons for yellowing, the difference between brightening and white coverage, and how to start diagnosis.
- How to choose white masterbatch by coverage and costChoosing white by coverage, appearance, and practical cost instead of random overuse.
- Why black doesn't give the opacity you need — grade, dispersion, materialReasons for weak opacity, how to choose the right grade, and economical vs deep-black.
Recycled materials
Sun exposure
- Why sunlight affects plastic — and what determines UV stabilizer choiceHow sunlight shows in color, surface, and flexibility, and what drives UV stabilizer selection.
- UV protection vs UV stabilization — what it means for your factoryCommon terms and what they mean practically for factories, and why there is no single choice for all products.