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Dotachem supplies Polypropylene Glycol in grades from PPG-400 to PPG-4000, covering a molecular weight range suitable for polyurethane formulation, industrial lubrication, hydraulic systems, pharmaceutical excipients and personal care applications. As a China-based manufacturer and supplier, we offer factory-direct pricing with flexible MOQ to support both trial orders and long-term bulk procurement.
Products are manufactured under ISO 9001 quality management standards, with a 24-hour in-house quality control process covering hydroxyl value, viscosity, moisture and appearance before each shipment. REACH-compliant documentation is available for export orders. COA, TDS and SDS are provided as standard.
| Specification | Appearance(25 ℃) |
Colour and lustre Pt-Co |
Hydroxyl valuemgKOH/g | Molecular weight |
Acid value mgkOH/g |
Hydration(%) |
pH (1%) |
| PPG-200 | Colorless transparent oily viscous liquid | ≤20 | 510~623 | 180-220 | ≤0.5 | ≤0.5 | 5.0～7.0 |
| PPG-400 | ≤20 | 255~312 | 360-440 | ≤0.5 | ≤0.5 | 5.0～7.0 | |
| PPG-600 | ≤20 | 170~208 | 540-660 | ≤0.5 | ≤0.5 | 5.0～7.0 | |
| PPG-1000 | ≤20 | 102~125 | 900-1100 | ≤0.5 | ≤0.5 | 5.0～7.0 | |
| PPG-1500 | ≤20 | 68~83 | 1350-1650 | ≤0.5 | ≤0.5 | 5.0～7.0 | |
| PPG-2000 | ≤20 | 51~62 | 1800-2200 | ≤0.5 | ≤0.5 | 5.0～7.0 | |
| PPG-3000 | ≤20 | 34~42 | 2700-3300 | ≤0.5 | ≤0.5 | 5.0～7.0 | |
| PPG-4000 | ≤20 | 26~30 | 3700-4300 | ≤0.5 | ≤0.5 | 5.0～7.0 | |
| PPG-6000 | ≤20 | 17~20.7 | 5400-6600 | ≤0.5 | ≤0.5 | 5.0～7.0 | |
| PPG-8000 | ≤20 | 12.7~15 | 7200-8800 | ≤0.5 | ≤0.5 | 5.0～7.0 |
Polypropylene Glycol has low volatility under normal processing and storage conditions, helping reduce evaporation loss in finished formulations. For lubricants, coatings, defoamers and industrial processing aids, this can support more stable handling, lower odor and reduced evaporation during use.
PPG is known for its relatively low toxicity compared with many high-volatility solvents or processing materials. Selected grades may be used in personal care, pharmaceutical or food-adjacent applications, depending on purity requirements, regulatory review and final use scenario. For industrial customers, the suitable grade should be confirmed according to application and documentation requirements.
Compared with Polyethylene Glycol (PEG), PPG has stronger hydrophobic character due to its molecular structure. It is often selected for systems requiring water resistance, oil compatibility or lubrication performance, while lower molecular weight grades may still be considered for some water-based formulations.
PPG can help support foam control in selected industrial systems, especially in defoamer formulations, industrial cleaning products, wastewater treatment and fermentation-related processes. Different molecular weight grades can be selected according to foam control requirements, compatibility and processing conditions.
PPG remains stable under normal storage and processing conditions. Depending on the selected grade, it can be used with resins, surfactants, solvents and other functional additives in polyurethane foams, coatings, lubricants, hydraulic fluids and other multi-component industrial systems.
PPG is commonly used in defoamer and foam control formulations. Its low volatility, hydrophobic character and compatibility with industrial systems make it suitable for applications where foam needs to be reduced during production, processing or wastewater treatment.
PPG can be used in lubricant blends and hydraulic fluid systems to support lubrication performance, viscosity control and low evaporation loss. Different molecular weight grades can be selected according to required viscosity, flow behavior and operating conditions.
In coatings and industrial formulation systems, PPG can help improve flexibility, compatibility and processing stability. Its low volatility also supports formulations where lower odor and reduced evaporation are required.
PPG is an important polyol material for polyurethane foams, elastomers, adhesives and sealants. Higher molecular weight grades are often selected when the system requires flexibility, cushioning performance or polymer structure support.
Selected PPG grades may be used in personal care, pharmaceutical or food-adjacent applications, depending on purity requirements, regulatory review and final use scenario. Customers should confirm the suitable grade and required documents before purchase.
PPG can also be used in industrial cleaning products and processing aid systems where compatibility, foam control, low odor and stable handling are important.
Before purchasing Polypropylene Glycol, customers usually need to confirm several technical indicators. These factors help determine whether the selected PPG grade is suitable for the target formulation and processing conditions.
Factor
Why It Matters
Molecular Weight
Affects viscosity, flowability, water compatibility and hydrophobic character. Lower grades are easier to handle, while higher grades are more suitable for systems requiring viscosity, lubrication or water resistance.
Hydroxyl Value
Important for polyurethane, elastomer, adhesive and prepolymer systems. It may affect NCO/OH ratio, reaction speed, crosslinking level and final material performance.
Moisture Content
Especially important for polyurethane, adhesives and sealants. Excess moisture may cause bubbles, affect foam structure or lead to unstable reaction behavior.
Acid Value
Used to evaluate acidic impurities. A higher acid value may affect formulation stability, catalytic reaction, storage performance, color or odor.
Solubility & Compatibility
Determines whether the selected grade can work with existing resins, surfactants, solvents, oil-phase materials or other additives without separation, turbidity or viscosity change.
Documents & Samples
COA, TDS and SDS help with technical review and quality confirmation. Sample testing is recommended before bulk purchase or supplier replacement.
Dotachem supplies Polypropylene Glycol in different molecular weight grades to meet various formulation and processing needs. Customers can select suitable PPG grades according to viscosity, hydroxyl value, moisture content, solubility and final application requirements.
Each batch is checked according to key quality indicators such as appearance, moisture, acid value, hydroxyl value and viscosity. This helps customers maintain stable performance in polyurethane, lubricant, coating, defoamer and industrial formulation systems.
Dotachem can provide different PPG grades for customers with different processing conditions and performance requirements. Lower molecular weight grades are easier to handle and mix, while higher molecular weight grades are more suitable for applications requiring higher viscosity, hydrophobicity or lubrication performance.
Dotachem supports OEM and customized supply services according to customer requirements. Product grade, packaging, labeling, documentation and shipment arrangement can be discussed based on application needs, order quantity and destination market.
Free samples are available for customers testing new formulations or evaluating alternative suppliers. Dotachem can also provide COA, TDS and SDS to support technical review, quality confirmation and import communication.
PPG can be supplied in drums, IBC tanks or other suitable packaging options according to grade, order quantity and shipping requirements. Dotachem can also support export shipment coordination to help customers arrange stable delivery for trial orders and regular bulk procurement.
Dotachem supplies Polypropylene Glycol in different molecular weight grades, including commonly used grades such as PPG-400, PPG-1000, PPG-2000 and PPG-4000. Suitable grades can be confirmed according to viscosity, hydroxyl value and final application requirements.
Yes. Dotachem supports OEM and customized supply services based on customer requirements. Packaging, labeling, documentation and shipment arrangements can be discussed according to order quantity and destination market.
PPG grade selection usually depends on molecular weight, viscosity, hydroxyl value, moisture content and compatibility with the final formulation system. Customers using PPG in polyurethane, lubricants, coatings, defoamers or personal care applications may need to confirm different indicators before purchase.
Selected PPG grades may be used in personal care, pharmaceutical or food-adjacent applications, depending on purity requirements, regulatory review and final use scenario. Customers should confirm the suitable grade and required documents before placing an order.
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No. 521-1, Ningliu Road, Changlu Street, Jiangbei New District, Nanjing, China
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