Diethylene Glycol

Polykem supplies high-purity China diethylene glycol (DEG) with a purity of ≥99.5% and an acid value of ≤0.1mg KOH/g, which complies with the USP/EP industrial standard. The product adopts the ethylene oxide hydration process and has passed the ISO 9001 certification. It is available in specifications of natural gas dehydration grade (dew point drop -20℃) and polyester grade (low metal impurities). Support IBC ton containers /200kg drums and technical consultation.

Product Parameter

CAS No. 111-46-6

Product Performance Overview

High Purity and Stable Quality

Diethylene Glycol with a typical purity of ≥99.5% supports consistent performance in industrial processing systems. Stable acid value control helps ensure reliable behavior in downstream applications such as resins, coatings and gas treatment processes.

Excellent Hygroscopic and Dehydration Performance

DEG has strong moisture absorption capability, making it suitable for natural gas dehydration and other systems where water removal and dew point control are required. It helps maintain process stability under different operating conditions.

Good Solvent Compatibility

With good miscibility in water and many organic solvents, DEG can be used as a flexible solvent component in chemical synthesis, coatings and formulation systems. It supports stable blending with a wide range of raw materials.

Suitable for Multiple Industrial Systems

DEG is widely used in polyester resin production, gas treatment, coatings and plasticizer-related applications. Its balanced properties make it suitable for systems that require both solvency and moisture control performance.

Applications of DEG

DEG shows up in a fairly wide range of industrial systems, and the reason usually comes back to one of three things: it absorbs moisture readily, it evaporates slower than monoethylene glycol, and it can react as a diol in esterification.

Polyester Resin and Fiberglass Reinforced Plastics

This is one of the more common uses — DEG goes into resin formulations as a raw material, where it adjusts viscosity and improves how the resin behaves during processing. Fiberglass-reinforced plastics in particular benefit from this, since better resin flow means better fiber wetting during lay-up.

Natural Gas Dehydration

Gas processing plants use DEG to pull water out of natural gas streams before it causes problems — hydrate formation, pipeline corrosion, that kind of thing. It tends to be used in dehydration systems running at lower temperatures.

Coatings, Inks and Solvent Systems

Formulators reach for DEG here because of its slower evaporation rate. In coating and ink systems, that translates to longer open time and more controlled drying, which matters when you need the product to stay workable during application.

Plasticizers and Industrial Chemicals

DEG also functions as an intermediate in plasticizer production and shows up in certain lubricant formulations, where the combination of solvency and moisture control plays a role.

Other Industrial Uses

Beyond these core applications, DEG is used in antifreeze systems, heat transfer fluids and some textile processing formulations.

Why Choose Polykem for Diethylene Glycol Supply

Quality Control for Industrial Use

For buyers, stable quality is important because DEG is often used in continuous production systems such as polyester resin, natural gas dehydration, coatings and chemical processing. Polykem pays attention to key indicators including purity, acid value, moisture, appearance and packaging condition before shipment, helping customers confirm whether the product meets their production and incoming inspection requirements.

Stable Production and Supply Support

Polykem has its own production and supply system for industrial chemical raw materials, supporting stable supply of the product and related solvent products. For customers with repeat orders or bulk procurement needs, we can help confirm product availability, production schedule, packaging options and shipment arrangements before order confirmation, reducing uncertainty during the sourcing process.

Customized Service and OEM Support

Polykem can provide customized service support according to customer purchasing and application requirements. For the orders, we can discuss packaging customization, label requirements, OEM arrangements, document preparation and shipment plans before order confirmation. Customers with long-term procurement needs can also communicate specific specifications, packaging formats, delivery schedules and long-term supply plans with our team.

Documentation and Export Service

For international orders, Polykem can provide COA, TDS and SDS to support product quality review, safety assessment and import communication. Packaging options such as 200 kg drums and IBC tanks are available according to order quantity and logistics requirements. Our team can also assist with quotation, sample arrangement, shipment tracking and after-sales communication, with inquiries usually replied to within one working day.

FAQ

Q1: What is it used for?

Diethylene Glycol is widely used in polyester resin production, natural gas dehydration, coatings, inks, plasticizers, lubricants, antifreeze systems and other industrial chemical applications. The suitable use depends on the required purity, moisture control, solvent performance and processing conditions.

Q2: What purity of the product can Polykem supply?

Polykem supplies DEG with a typical purity of ≥99.5%. Key indicators such as acid value, moisture, appearance and other specifications can be confirmed before order placement according to customer requirements.

Q3: Can Polykem supply DEG for natural gas dehydration?

Yes. DEG can be used in natural gas dehydration systems where moisture absorption and dew point control are required. Customers can share their application conditions and target requirements, and Polykem can help confirm suitable product information and documents.

Q4: What packaging options are available?

It can be supplied in 200 kg drums and IBC tanks. Packaging options can be confirmed according to order quantity, shipping method, destination market and customer handling requirements.

Q5: Can I request a sample before bulk purchase?

Yes. Samples can be arranged for customers who need to evaluate Diethylene Glycol quality, supplier qualification or application suitability before bulk purchase. Please contact Polykem with your target application and required quantity.

Q6: What is the typical lead time for the orders?

Lead time depends on order quantity, packaging requirement and shipment arrangement. For regular orders, Polykem can help confirm product availability, packaging schedule and estimated delivery plan before order confirmation.