Grade reference

Westlake 1195

Suspension resin from Westlake Corporation, K-value 58.

All grades · sourced from Westlake Corporation · checked 19 August 2026

Producer
Westlake Corporation
Polymer
PVC
Type
Suspension resin
K-value
58
Inherent viscosity
0.73 dl/g
Producer lists it for
Blow moulded bottles · Injection moulded fittings

What that means in practice

The higher-viscosity partner to 1185 — K58 at IV 0.73, same bottle and fitting applications but more molecular weight behind it. Worth the step up where the part needs a bit more toughness and the machine can push it.

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 1195

  • 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.