PVC Additives Articles
Concept explainers, comparisons, and how-tos.
Articles
Calcium-Zinc vs Lead vs Tin Stabilizers: Selection for Rigid and Flexible PVC
There is no universally best PVC stabilizer chemistry. Calcium-zinc, tin, and lead stabilizers were each developed to solve a different combination of thermal, optical, mechanical, cost, and regulatory constraints, and they continue to co-exist in industry…
ReadInternal vs External Lubricants in PVC: Balance, Fusion Time and Plate-Out
Not every PVC processing problem is a lubrication problem. This article helps a production engineer decide when lubrication is the first place to investigate, and when it probably is not. Lubricants do not make PVC stronger. They help PVC process…
ReadProcessing Aids & Acrylic Impact Modifiers: When You Actually Need Them
Not every PVC formulation needs more additives. This article helps you decide when a Processing Aid or an Acrylic Impact Modifier is worth investigating, and when another part of the formulation is more likely to be responsible.
ReadPVC Additives Explained: Stabilizers, Lubricants, Processing Aids and Impact Modifiers
Poly(vinyl chloride) is thermally unstable and, on its own, cannot be melt-processed into a usable part. Every PVC formulation is therefore an additive system built from four functional families, each solving a different problem: stabilizers protect the…
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- Anti-block / Slip Masterbatch — Film Blocking Together or Feeding PoorlyFreshly wound film sticks to itself, or converted bags do not open or feed through packaging machines.
- Anti-fog Masterbatch — Fog or Water Droplets Inside Greenhouse or Food Packaging FilmWater condenses as droplets inside greenhouse film (blocking light) or food packaging film (blurring product view and dripping onto food).
- Anti-static Masterbatch — Static Electricity on Plastic Film or PartsPlastic parts or film hold a static charge — attracting dust, sticking, or creating ESD risk in electronics packaging.
- Desiccant Masterbatch — Bubbles, Streaks, or Splay When Processing Regrind or Wet ResinRegrind or hygroscopic-contaminated resin produces bubbles, silver streaks, or splay marks in the finished part, and drying is not practical or sufficient.
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