Grade reference
Formolon 622S
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
- Siding · Calendering · Film · Rigid profile · Rigid expanded profile
What that means in practice
The broadest application list in the K65 band — siding, calendering, film and both solid and expanded rigid profile. If a seller offers 622S against plain 622, they are not interchangeable for film or expanded profile work.
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 622S
- 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?
Browse the board to see what is listed today — public, no account needed. Nothing matching? Post a Wanted requirement with the grade and tonnage you need and sellers come to you. Selling it? List it — free, no commission.