Formolon 622E

Producer

Formosa Plastics Corporation, U.S.A.

Polymer

PVC

Type

Suspension resin

K-value

65

Producer lists it for

Siding · Rigid profiles · Pipe

What that means in practice

Same K65 as 622 but listed for siding and rigid profile as well as pipe, so it is the more weatherable-market oriented of the pair. The K-value alone will not tell the two apart — the suffix does.

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 622E

• 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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