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Representative industry imagery. Actual lot photography and COA provided upon inquiry.

KURARAY POVAL L-11

Secondary (low-hydrolysis) polyvinyl alcohol for PVC suspension polymerization. Used in combination with a primary PVA to control particle porosity, plasticiser uptake, and bulk density of the finished resin. Viscosity 5.5–7.5 cps (4% aqueous, 20 °C), ash ≤ 0.5 wt%. KURARAY POVAL brand, Japan origin.

Chemistry
Secondary (low-hydrolysis) polyvinyl alcohol
Viscosity
5.5–7.5 cps (4% aqueous solution at 20 °C)
Ash Content
≤ 0.5 wt%
pH (4% aq.)
5–7
Function
Secondary PVA — controls PVC particle internal porosity and plasticiser absorption
Application
Paired with KH-17 (primary PVA) for PVC-S resin grades S65 / S70 / S1000
Packaging
20 kg / 25 kg multi-wall paper sacks · 20 FCL available
Origin
Kuraray Co., Ltd. (POVAL brand), Japan — ISO 9001
Japan originISO 9001Secondary PVACOA included
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Engineering Detail

Dial in PVC porosity and plasticiser uptake.

POVAL L-11 is a low-hydrolysis secondary PVA. Blended with a primary suspending agent like GOHSENOL KH-17, L-11 influences the internal structure of the growing PVC particle — creating the porous network that determines how readily the finished resin absorbs plasticiser during compounding. Getting the primary/secondary PVA ratio right is the difference between a compound-grade and a film-grade resin. We'll share ratio recommendations based on your target grade.

Low-hydrolysis PVA

Designed to function as a secondary agent — tunes internal porosity without destabilising the main VCM droplet.

Kuraray consistency

Tight viscosity and ash control batch-to-batch, critical for predictable PSD and plasticiser absorption.

Pairs with KH-17

Standard combination for Middle-Eastern and European PVC-S producers targeting S65 / S70 grades.

Full documentation

COA per lot, MSDS in EN/CN/AR, and blend ratio guidance from our technical team.

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Need POVAL L-11 pricing?

Share your monthly PVC tonnage and destination port. We'll come back with CIF pricing and trial-lot availability.