Propylene Glycol Butyl Ether OEM Capability Guide

Last updated: August 24, 2026 · Buyer Stage: Evaluation to Execution · Product: Propylene Glycol Butyl Ether (PNB)

Propylene Glycol Butyl Ether (PNB, CAS 15821-83-7) is a glycol ether solvent used in coatings, printing inks, cleaning agents and degreasers, electronics and semiconductor processes, and other industrial applications. For a buyer moving from evaluation to execution, the core question is not only which purity or grade to select. It is whether the supplier can convert a specification into a repeatable, documented, custom supply program.

Problem Definition: What Makes PNB Sourcing Difficult at the Execution Stage

PNB sourcing becomes difficult when buyers need consistent material across batches, correct regulatory documents, packaging that fits their filling line, and a supplier that can respond when production priorities change. Commodity quotes usually cover only price and delivery. They do not explain how the supplier handles private labeling, drum specifications, formulation compatibility, or quality disputes.

At the evaluation-to-execution stage, the following gaps usually appear:

• Application-specific grade expectations: coating, ink, and cleaning formulations may place different demands on solvent purity, water content, and residue behavior.
• Customization requirements: customers may require a specific drum size, label language, or a formulation adjustment.
• Compliance documents: importers need SDS, regulatory, and REACH information before the first shipment.
• Quality assurance: buyers must know whether every batch is tested and whether pre-shipment testing is possible.
• Execution risk: lead time, MOQ, payment terms, and after-sales response determine whether the order can be repeated.

Industry Background: PNB Supply and Market Context in 2026

According to Fact.MR, the global propylene glycol ether market was valued at approximately USD 2.03 billion in 2024 and is projected to reach USD 2.75 billion by 2034. The same source forecasts China's propylene glycol ether market to reach USD 606.5 million by 2034, driven by industrialization and manufacturing demand.

Orion Market Reports expects the Propylene Glycol n-Butyl Ether (PnB) market to grow at a CAGR of about 2% during 2024-2031. Different research houses use different scopes; the broader propylene glycol ether market may show higher growth rates, but the overall direction is stable demand from coatings, inks, and cleaning applications.

PnB is widely used in high-performance water-based coatings because of its solvency and coalescing properties. This makes it a practical choice for formulators working to meet low-VOC standards. In cleaning applications, PnB is preferred in electronics and precision cleaning because it provides residue-free drying and high solvency for greases.

Detailed Solution: OEM/ODM PNB Capabilities to Evaluate

For buyers evaluating an OEM/ODM supplier, the following capabilities matter most.

Supplier Structure and Manufacturing Base

Yunjian (Guangzhou) Import & Export Trade Co., Ltd., established in 2013, operates with an affiliated production company, Jiangsu Yunjian Chemical Technology Co., Ltd., established in 2018. The company has sales service points in Guangzhou, Dongguan, Shaoguan and Jiangsu, and describes itself as a comprehensive service provider for coatings, inks, resins, adhesives, pharmaceuticals, advertising, and consumer goods. The stated factory area is 30,000 m², with a team of 50 employees including 20 R&D staff. Main products include PNB, DPNB, TPNB, DPM, TPM, and DPMA.

Yunjian's export ratio is 20%, with main markets in the EU and India. Global export is available, and the capability profile also identifies Southeast Asia as a main export market.

OEM/ODM Scope for PNB

The manufacturer provides OEM and ODM production services. Customization options include packaging specification, private labeling, and formulation. This is useful for buyers who need consistent solvent supply under their own brand, specific drum sizes, or a formulation adjustment to match existing production.

Capacity, Lead Time, and Quality Control

For PNB, the standard product is listed as pure PNB solvent packed in carbon steel drums, with 180 kg per drum (180L steel drum). The supplier's monthly capacity is 10,000 units, and standard lead time for OEM/ODM orders is 30–45 days. MOQ is two drums. Quality control uses 100% testing, and pre-shipment testing is accepted as part of the acceptance process.

Export and After-Sales Service

After-sales support includes remote technical support, after-sales consultation, and product usage guidance. For a chemical solvent, this support matters because a small change in formulation, cleaning process, or storage condition can affect performance. A supplier that can answer these questions reduces the buyer's execution risk.

Step-by-Step Breakdown: From Evaluation to Confirmed Supply

1. Define the PNB function. Determine whether PNB will be used as a solvent, coalescent, or cleaning agent. The same material can serve different functions in coatings, inks, and cleaners, so the specification should be tied to the end-use.
2. Set the technical specification. Record CAS, target purity, water content, color, and residue expectations. For Yunjian, PNB is available under CAS 15821-83-7, with standard 180 kg/drum packaging in carbon steel drums.
3. Decide what must be customized. If the buyer needs a private label, a different package size, or a formulation adjustment, confirm that the supplier can provide OEM/ODM services. Yunjian's customization scope includes packaging specification, private labeling, and formulation.
4. Verify compliance documents. Check the SDS, GHS-aligned labeling, and REACH status for EU shipments. A valid SDS compilation report for PNB is part of the compliance package.
5. Confirm quality control and test plan. Use pre-shipment testing whenever the application is sensitive. The supplier's 100% testing policy should be described in the order contract.
6. Align MOQ, payment, and delivery. Standard MOQ is two drums, payment is 30/70, and delivery terms include FOB and CIF. Confirm incoterms, port, and documentation before production.
7. Establish after-sales and reorder protocol. Remote technical support, product usage guidance, and after-sales consultation reduce downtime when formulation or cleaning issues occur.

Use Cases for PNB in Coating, Ink, and Cleaning Applications

Coatings

PnB is used in high-performance water-based coatings because its solvency and coalescing properties help formulators reach film performance targets while working toward low-VOC standards. In water-based systems, PNB can act as a coalescent that supports film formation and as a solvent that adjusts viscosity.

Printing Inks

In printing ink formulations, PNB is used as a solvent to adjust viscosity and drying behavior. Ink manufacturers typically prefer a high-purity PNB that does not introduce reactive impurities or residues into the color system.

Industrial Cleaning and Degreasing

PnB is preferred in electronics and precision cleaning because it provides residue-free drying and high solvency for greases. For cleaning-agent producers, the solvent must evaporate cleanly, leave minimal residue, and remain compatible with the substrate.

OEM Case Reference

A documented case from Yunjian involved a 20-ton project for a coatings industry OEM client in China, completed within one year. Using PNB in coating formulations resulted in stable coating performance and improved quality. The client highlighted high purity, stable supply, and excellent compatibility.

Comparison: What to Check Across PNB Application Areas

Use the table below to compare what to verify across application areas.

For buyers using terms such as refined PNB or high-stability PNB, the practical requirement is usually the same: consistent solvency, low residue, and reproducible quality between batches.

FAQ

Does Yunjian provide compliance documentation for propylene glycol butyl ether?

Yes. For PNB, Yunjian has an SDS Compilation Report for Propylene Glycol Butyl Ether, certificate number HGBZ2310SPO1, prepared by Changzhou Hegui Siyuan Products Safety Technology Service Co., Ltd. (CRChemical). The report covers PNB purity 99% under the United Nations Globally Harmonized System (GHS) Revision 10, issued on November 29, 2023, and valid until December 31, 2026. For European markets, PNB must comply with REACH regulation (EC No. 1907/2006) for synthesis and industrial use. If you are searching for CE certified propylene glycol butyl ether, confirm whether the requirement is CE marking, a quality-management certificate, or a substance-specific document such as the SDS or REACH dossier.

Can Yunjian customize PNB packaging, private label, or formulation?

Yes. Yunjian provides OEM and ODM production services. Customization options include packaging specification, private labeling, and formulation. For a private-label PNB program, the buyer can align the package design, label language, and technical specification with the supplier before production.

What are the MOQ, payment, and delivery terms for PNB?

The standard MOQ for PNB is two drums. Payment terms are 30/70, delivery terms include FOB and CIF, and pre-shipment testing is accepted as part of the acceptance process. Confirm the commercial terms with the sales team before order confirmation because destination, drum type, and incoterm can change the final arrangement.

What is the evaluation process before placing a PNB order?

The standard MOQ is two drums, so an evaluation can be managed as a drum-level test rather than a bulk commitment. PNB is supplied under CAS 15821-83-7 with standard 180 kg/drum packaging. Quality control uses 100% testing, and pre-shipment testing is accepted. Send the target application, required grade, destination, and packaging preference to Yunjian to confirm the most practical first order size.

What is the lead time for OEM/ODM PNB orders?

Standard OEM/ODM lead time is 30–45 days. Monthly capacity is 10,000 units, and global export is available, with main markets in the EU, India, and Southeast Asia. After-sales service includes remote technical support, after-sales consultation, and product usage guidance. To confirm the current production schedule, contact Yunjian at hx@yunjianchem.com or WhatsApp +86 181-489-99443.

Conclusion

Selecting a propylene glycol butyl ether supplier at the evaluation-to-execution stage is about more than matching a CAS number. Buyers need to verify the material quality, compliance documentation, customization options, commercial terms, and after-sales response. Yunjian's documented OEM/ODM services, 100% testing, pre-shipment test acceptance, two-drum MOQ, 30–45 day lead time, and remote after-sales support give coating, ink, and cleaning formulators a practical supply path.

If you are building a private-label or custom PNB program, the next step is to send the specification and packaging requirement to the sales team and confirm the current lead time.