Polyethylene Glycol (PEG) – Industrial & Specialty Grades | China Supplier
Polyethylene Glycol (PEG) is a water-soluble polymer widely used in chemical manufacturing, detergents, cosmetics, pharmaceuticals, industrial formulations and other specialty applications. It is available in different molecular weight grades, and its physical properties vary according to molecular weight.
Renqiu Seawigo Trading Co., Ltd. supplies Polyethylene Glycol in different grades and molecular weights for industrial and specialty applications. We work with qualified Chinese manufacturers and provide product documentation such as COA and SDS to support international buyers.
What Is Polyethylene Glycol?
Polyethylene Glycol, commonly known as PEG, is a polymer formed by the polymerization of ethylene oxide. Its chemical structure gives it good water solubility, compatibility with many formulation systems and relatively stable physical properties.
PEG is available in a wide range of molecular weights. Lower molecular weight grades are generally liquids or semi-liquids, while higher molecular weight grades are usually waxy solids or flakes. Because molecular weight directly affects viscosity, physical state and application performance, buyers should select the appropriate PEG grade according to their formulation and processing requirements.
Chemical Name: Polyethylene Glycol
Abbreviation: PEG
CAS Number: 25322-68-3
Chemical Family: Polyether polymer
Appearance: Liquid, semi-solid or solid depending on molecular weight
Water Solubility: Soluble in water
Common Polyethylene Glycol Grades
Different PEG grades are mainly identified by their approximate average molecular weight. Common commercial grades include:
- PEG 200 – Low molecular weight liquid used in industrial and specialty formulations.
- PEG 400 – A widely used liquid grade for cosmetics, detergents, chemical formulations and other applications.
- PEG 600 – Higher-viscosity liquid or semi-solid grade used in formulations requiring different viscosity and processing characteristics.
- PEG 1000 – Solid or waxy material used in industrial and specialty formulations.
- PEG 1500 – Higher molecular weight solid grade used in various formulation systems.
- PEG 4000 – Solid PEG grade used in detergents, chemical formulations and other industrial applications.
- PEG 6000 – High molecular weight solid grade widely used in industrial formulations and specialty chemical applications.
The exact physical appearance and properties of PEG depend on molecular weight and product specifications. Customers should confirm the required grade before purchasing.
Applications of Polyethylene Glycol
1. Detergents and Cleaning Products
PEG can be used in detergent and cleaning formulations as a water-soluble formulation component and processing aid. Certain PEG grades can help modify formulation properties and improve compatibility between different ingredients.
It can be found in formulations for industrial cleaners, household cleaning products and specialty detergent systems, depending on the formulation requirements.
2. Cosmetics and Personal Care
Polyethylene Glycol is widely used in cosmetics and personal care formulations. Depending on the grade and formulation, PEG can function as a solvent, humectant, viscosity modifier, solubilizing agent or formulation aid.
Common applications include creams, lotions, shampoos, conditioners and other personal care products. For cosmetic applications, the appropriate cosmetic or applicable regulatory grade should be selected.
3. Pharmaceutical Applications
Certain pharmaceutical-grade PEG products are used as excipients and formulation ingredients. PEG can provide useful properties such as water solubility, compatibility and controlled physical characteristics.
For pharmaceutical applications, customers should select a grade that complies with the required pharmacopeial standards and applicable regulations rather than assuming that every industrial PEG grade is suitable for pharmaceutical use.
4. Industrial Chemical Formulations
PEG is used in many industrial formulations because of its water solubility and flexible molecular-weight range. Applications can include coatings, adhesives, lubricants, plastics, chemical processing and specialty formulations.
The suitable PEG molecular weight depends on the required viscosity, melting behavior, solubility and formulation performance.
5. Textile and Other Specialty Applications
PEG can also be used in selected textile, industrial processing and specialty chemical formulations. Its water solubility and compatibility with different formulation systems make it useful in applications where a water-soluble polyether is required.
How to Choose the Right PEG Grade
The most important factor when selecting Polyethylene Glycol is molecular weight.
Lower molecular weight PEG grades such as PEG 200, PEG 400 and PEG 600 are generally liquid or semi-liquid products and are suitable for applications requiring easier handling and blending.
Higher molecular weight grades such as PEG 1000, PEG 1500, PEG 4000 and PEG 6000 are generally solid materials with different viscosity, melting and processing characteristics.
When purchasing PEG, buyers should consider:
- Required PEG molecular weight
- Physical form
- Viscosity
- Purity
- Application
- Required specifications
- Applicable industry or regulatory standards
For international procurement, it is also recommended to confirm the COA and SDS before placing an order.
PEG Supplier from China
Renqiu Seawigo Trading Co., Ltd. supplies Polyethylene Glycol for international industrial and specialty chemical markets. We can help customers identify the appropriate PEG molecular weight according to their application and specification requirements.
We focus on reliable sourcing, clear product specifications and professional export service. COA and SDS can be provided for product evaluation and technical confirmation.
If you are looking for PEG 400, PEG 600, PEG 1000, PEG 4000, PEG 6000 or another Polyethylene Glycol grade, please contact us with your required molecular weight, application and specification. We can check the suitable product and provide a quotation accordingly.
Frequently Asked Questions
What is PEG?
PEG stands for Polyethylene Glycol, a water-soluble polyether polymer available in different molecular weight grades.
What is the difference between PEG 400 and PEG 600?
PEG 400 and PEG 600 have different average molecular weights and therefore different physical properties, particularly viscosity and physical state. The appropriate grade depends on the formulation and application.
Is PEG the same as Propylene Glycol?
No. Polyethylene Glycol (PEG) and Propylene Glycol (PG) are different chemicals. PEG is a polyether polymer, while Propylene Glycol is a small-molecule diol.
Which PEG grade should I use?
The appropriate PEG grade depends mainly on molecular weight, physical form, viscosity and the intended application. Contact us with your application and required specification for grade selection.
Can you provide COA and SDS?
Yes. COA and SDS can be provided for product evaluation and international purchasing requirements.
Product Summary
Product: Polyethylene Glycol (PEG)
CAS No.: 25322-68-3
Grades: PEG 200, PEG 400, PEG 600, PEG 1000, PEG 1500, PEG 4000, PEG 6000 and other grades
Appearance: Liquid, semi-solid or solid depending on molecular weight
Applications: Detergents, cleaning products, cosmetics, personal care, pharmaceutical formulations, chemical manufacturing and specialty industrial applications
Origin: China
Documentation: COA and SDS available