Grade reference
Formolon 690
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
- 73
- Producer lists it for
- Flexible calendering · Flexible extrusion · Wire and cable
What that means in practice
K73 is the highest molecular weight on Formosa's suspension list — the most demanding to process and the strongest once it is. Listed for flexible calendering, extrusion and wire and cable.
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 690
- High-K grades are bought for plasticiser uptake, so ask about porosity and how consistently the batch absorbs.
- If the end use is wire, cable or anything food-contact, the approval documentation matters more than the K-value.
- Ask for a batch certificate of analysis rather than the generic datasheet — at this end of the range the batch is what you are buying.
Buying or selling this?
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