Polyethylene Glycol

Polyethylene Glycol (PEG) is a water-soluble polymer produced through the polymerization of ethylene oxide. Available in molecular weights ranging from approximately 200 to 20000. Polyethylene Glycol is widely used in pharmaceutical formulations, personal care products and industrial processing. Typical functions include serving as an excipient or carrier, humectant, lubricant and component of metalworking fluids. Polykem supplies a broad range of PEG grades to meet different application and processing requirements.

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Product Description

Polykem provides high-quality Polyethylene Glycol in a broad range of grades, including PEG 200, PEG 400, PEG 600 and PEG 1000, as well as higher-molecular-weight options. Our PEG products offer low toxicity, good biocompatibility, and excellent moisture absorption and retention. With reliable quality control and competitive pricing, Polykem supports customers from laboratory-scale testing to industrial-scale supply.

Product Parameter

CAS No. 25322-68-3

Chemical Formula: (C2H4O)nH2O

Trade Name	Melting point	water% (max)	average Mw	PH value (5% aq)	Color(30℃) APHA(max)	FORM in 25℃	Flash Point ℃	OHV mg KOH/g
PEG 200		0.5	190~210	4.0~7.0	30	L	>150	549~590
PEG 300		0.5	285~315	4.0~7.0	30	L	>200	356~393
PEG 400	4~8	0.5	380~420	4.0~7.0	40	L	>200	267~295
PEG 600	18~22	0.5	570~630	4.0~7.0	40	L	>200	178~196
PEG 800		0.5	774~831	5.5~7.5	30	L	>200	135~145
PEG 1000	35~39	0.5	950~1050	4.0~7.0	*：30	S	>200	107~118
PEG 1540	43~47	0.5	1300~1600	4.0~7.0	*：30	S	>200	70~86
PEG 2000	49~53	0.5	1800~2200	4.0~7.0	*：30	S	>200	51~62
PEG 3000	53~57	0.5	2800~3200	4.0~7.0	*：40	S	>200	35~40
PEG 3350	53~57	0.5	3080~3680	4.0~7.0	*：40	S/F	>200	30.5~36.5
PEG 4000	53~57	0.5	3400~4000	4.0~7.0	*：40	S/F	>200	28~33
PEG 5500		0.5	5000~6000	4.0~7.0	*：40	F	>200	18.7~22.4
PEG 6000	56~61	0.5	5800~6500	4.0~7.0	*：40	F	>200	17.3~19.3
PEG 8000	56~61	0.5	7400~9000	4.0~7.0	*：40	F	>200	12.5~15.2
PEG 11000	56~61	0.5	10700~12000	4.0~7.0	*：40	F	>200	9.0~12.0
PEG 12000	56~61	0.5	11000~13700	4.0~7.0	*：40	F	>200	8.2~10.2
PEG 13000	56~61	0.5	11800~15000	4.0~7.0	*：40	F	>200	7.5~9.5
PEG 20000	54~64	0.5	16000~25000	5.0~8.0	*：40	S	>200	4.5~7.0

Key Performance Features

Wide Molecular Weight Range

Polykem supplies PEG grades across a broad molecular weight range, allowing customers to select liquid, waxy or solid products according to processing and application requirements.

Good Water Solubility

Most Polykem PEG grades offer good water solubility, supporting use in aqueous formulations and processing systems.

Lubrication and Processing Support

Selected PEG grades can provide lubrication, moisture control and processing support in rubber compounding, metalworking, plastics and other industrial applications.

Stable Chemical Properties

Polykem Polyethylene Glycol offers good chemical stability under normal handling and storage conditions, supporting consistent performance in industrial formulations.

Polyethylene Glycol Grade Selection

Molecular weight affects physical form, viscosity and handling. Buyers should also consider processing temperature, required consistency and the specifications of the final product.

PEG Range	Typical Physical Form	General Selection Considerations
PEG 200–600	Liquid or semi-liquid	Suitable where easy pumping, mixing, liquid dosing or good formulation compatibility is required
PEG 800–2000	Soft solid to waxy solid	Considered when lubrication, moisture retention and added consistency are needed
PEG 3000–8000	Solid or flakes	Suitable for applications requiring higher consistency, binding or lubrication
PEG 11000–20000	High-molecular-weight solid	Selected where a higher molecular weight and solid form are required for processing or final product performance

Polykem can help match a suitable PEG grade based on the target application, processing conditions and required molecular weight.

Applications

Metalworking and Lubrication

Used in metalworking fluids and lubricants to support lubrication and processing performance.

Coatings and Adhesives

Can be used as a processing aid, plasticizing component or compatibility modifier.

Rubber and Plastics

Selected grades support lubrication, dispersion and processing in rubber and plastic systems.

Personal Care and Formulations

Used as a humectant, carrier, solubilizing component or consistency modifier, depending on the grade.

Other Industrial Uses

Higher molecular weight grades may be used in binders and other solid-form processing applications.

Polykem Product Advantages

- Multiple PEG Grades & Grade Matching

Polykem supplies PEG grades across different molecular weight ranges and can support product matching based on application, processing requirements and target specifications.

- In-house Laboratory & Quality Control

Polykem has an in-house laboratory and professional quality team to monitor key product indicators and support batch consistency before shipment.

- Free Sample Support

Free samples are available for qualified projects to help customers evaluate suitable PEG grades before bulk purchasing.

- Technical & Compliance Documentation

Available documents include COA, SDS, TDS, ISO 9001 certification and REACH-related documentation according to product and market requirements.

- Flexible Packaging, OEM & Export Support

Polykem supports flexible packaging arrangements, OEM packaging and labeling, as well as export coordination for regular and bulk orders.

FAQ

1. Does Polykem support customized packaging and bulk orders?

Yes. Polykem supports flexible packaging, OEM packaging and labeling, as well as regular and bulk order arrangements with export coordination.

2. Can PEG be used in rubber and plastics processing?

Yes. Selected PEG grades can be used as lubricants, dispersing aids or processing aids in rubber compounds and plastic systems. The suitable grade and dosage should be tested in the actual formulation.

3. What payment terms does Polykem accept?

Polykem accepts T/T, L/C, Western Union and other agreed payment methods. Payment terms can also be discussed according to order quantity, destination and long-term cooperation details.

4. Will Polykem participate in industry exhibitions?

Yes. Polykem will participate in several major chemical industry exhibitions in the second half of the year, giving us more opportunities to meet customers and partners in person. Please follow our official website for the latest exhibition updates and meeting information.

A Beginner’s Guide to PEG Selection: Molecular Weight, Physical Form, and Processing

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