PEO MW 100k (CAS 25322-68-3) is linear nonionic water-soluble polyether polymer. Dissolved in water to make environment-friendly water-based release agent. During rubber compression and vulcanization, it creates a thin separating layer between mold and rubber blank to achieve stable demolding effect. After molding, the polymer decomposes cleanly, hardly contaminates rubber surface. It is an eco-friendly alternative to traditional oil-based release agents for molded rubber processing.

Product Detail

Product Overview

PEO MW 100k Polyethylene Oxide (CAS 25322-68-3) is functional water-soluble polymer tailored for rubber vulcanization molding industry. Traditional silicone release agents often lead to poor coating and bonding performance of finished rubber. Oil-based release agents generate heavy smoke and stubborn mold deposits. This PEO grade is used to produce water-based release liquid. After water evaporation, a thin uniform polymer film covers mold surface to deliver reliable anti-sticking performance. After high-temperature molding, the polymer decomposes completely, leaving minimal residues. It greatly lowers the risk of surface defects and improves the reworkability of rubber products.

Key Features

Molecular Weight: 100,000, CAS 25322-68-3, white free-flowing powder
Good water solubility, simple preparation of waterborne release solution
Form even isolating film, stable demolding property for molded rubber
Low residue after thermal decomposition, effectively reduce mold fouling
No negative impact on rubber surface adhesion, convenient for post-treatment
Odorless and low volatile, improves production workshop environment
Good compatibility with other water-based processing auxiliaries

Main Applications

Raw material of water-based release agent for vulcanized molded rubber
Anti-sticking auxiliary for silicone rubber, NBR, NR, EPDM compression molding
Demolding additive for rubber seals, damping parts, rubber rollers and gaskets
Environment-friendly substitute for silicone and oil type rubber release agents

Usage Guidance

Slowly add PEO powder into continuously stirred deionized water to avoid agglomeration, stir until fully dissolved. Usual working concentration ranges from 0.5% to 3.0%. Spray evenly on cleaned mold surfaces and wait for complete water evaporation before feeding rubber materials. Small batch molding tests are required to confirm release effect and surface quality before mass production.

Storage & Package

Seal packages tightly. Store in cool, dry and ventilated warehouse, avoid moisture absorption and long-term direct sunlight. Standard package: 25kg kraft paper bag with inner PE liner. Shelf life: 12 months under proper storage.

Service Support

Testing samples are available for customer trial production. Stable bulk supply. We offer technical support for water-based rubber release agent formulation. Welcome to inquire TDS, COA and factory quotation.

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.