Grade reference
Formolon 622
All grades · sourced from Formosa Plastics Corporation, U.S.A. · checked 19 August 2026
- Producer
- Formosa Plastics Corporation, U.S.A.
- Polymer
- PVC
- Type
- Suspension resin
- K-value
- 65
- Producer lists it for
- Pipe · Conduit
What that means in practice
K65 pipe and conduit resin — the workhorse band for rigid extrusion, and the one most people mean when they say general-purpose suspension PVC. Formosa list four grades at or near K65, so confirm which of them you are being offered rather than assuming.
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 622
- K65 is the most traded band, which means it is also the band where 'general-purpose PVC' gets used loosely. Get the actual grade name.
- For pipe and conduit work, ask whether the material is prime, near-prime or off-spec, and what the deviation is if it is off-spec.
- Check the packaging and storage history — suspension resin is a powder and it picks up moisture.
Buying or selling this?
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