Grade reference
Westlake 2079
All grades · sourced from Westlake Corporation · checked 19 August 2026
- Producer
- Westlake Corporation
- Polymer
- PVC
- Type
- Suspension resin
- K-value
- 61
- Inherent viscosity
- 0.79 dl/g
- Producer lists it for
- Extruded or calendered sheet · Foam · Rigid profile products
What that means in practice
K61, IV 0.79 — the rigid sheet, foam and profile grade a step above 5305. Still below the general-purpose pipe band, so it is a converter's resin rather than a pipe extruder's.
If K-values are not something you work with daily, our PVC grades and pricing guide explains what they measure and how prime, off-spec, regrind and regranulate differ.
What to check before buying Westlake 2079
- Confirm the K-value on the batch, not just the grade name — low-K grades are chosen for flow, and a drift upward changes how it fills.
- Ask what it was intended for. Low-K resin sold as general-purpose will disappoint in an application that needed mechanical strength.
- For anything moulded, ask about colour consistency and regrind content if it is not prime.
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.