Grades & Specifications
3 articles in this category.
Premium, First Grade or Qualified: What the Grade Level Changes
The three grade levels inside every SG grade, which indicators actually differ, and how to pick the one your process needs.
PVC Resin Viscosity (K Value): What It Means and How to Read It
What the viscosity band actually controls, how it is measured, and why buyers should specify a grade rather than a K value.
SG5 vs SG3: Which PVC Resin Grade Do You Actually Need?
The two grades buyers ask about most. A practical comparison of viscosity band, particle behaviour and the products each one ends up in.
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