Grade reference

Formolon AWS

Compound from Formosa Plastics Corporation, U.S.A..

All grades · sourced from Formosa Plastics Corporation, U.S.A. · checked 19 August 2026

Producer
Formosa Plastics Corporation, U.S.A.
Polymer
PVC
Type
Compound
Producer lists it for
Profiles for fencing · Siding · Other outdoor weatherable markets

What that means in practice

Outdoor weatherable compound for fencing and siding profile — the profile-oriented sibling of APW, which covers window lineals. Both are formulated products, so weathering performance comes from the package, not the PVC alone.

If K-values are not something you work with daily, our PVC grades and pricing guide explains what the number is measuring and how rigid, flexible, resin, compound and regrind differ.

What to check before buying Formolon AWS

  • This is a formulated compound, not a base resin, so you are buying someone's recipe — ask what is in the package.
  • Weathering, fire performance and colour all come from the additive system. Get those declared rather than inferred from the PVC.
  • Ask for a batch certificate of analysis and confirm the formulation has not changed between lots.

Buying or selling this?

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