Westlake 5265

Producer

Westlake Corporation

Polymer

PVC

Type

Suspension resin

K-value

57

Inherent viscosity

0.68 dl/g

Producer lists it for

Injection and blow moulded products · Extruded sheet · Bottles · Fittings

What that means in practice

Same IV 0.68 as 1185 but a K-value one point higher and a broader application list that adds extruded sheet. The 5000-series and 2000-series overlap heavily in this band — the number tells you less than the datasheet does.

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 5265

• 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.