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Polyether Polyol

Polypropylene Glycol 400 (PPG-400)

Polypropylene Glycol 400 (PPG-400) is a polyether diol of approximate molecular weight 400 (MW 360-440, hydroxyl value 255-312 mgKOH/g, acid value <=0.5 mgKOH/g, water <=0.5%, Pt-Co <=40) supplied as a colorless viscous liquid conforming to Q/320621HA046. It is a key polyol raw material for flexible PU foam, elastomers and polyether synthesis.

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Product overview

Polypropylene Glycol 400 (PPG-400) is a polyether diol of approximate molecular weight 400 (MW 360-440, hydroxyl value 255-312 mgKOH/g, acid value <=0.5 mgKOH/g, water <=0.5%, Pt-Co <=40) supplied as a colorless viscous liquid conforming to Q/320621HA046. It is a key polyol raw material for flexible PU foam, elastomers and polyether synthesis.

Applications

  • Flexible polyurethane foam
  • Polyurethane elastomers
  • Polyether polyol synthesis
  • Sealants and adhesives
  • Defoamer and lubricant intermediate
NTJN chemical product packaging — Polypropylene Glycol 400 (PPG-400)

Polyether Polyol

Representative packaging

Product features

  • Polypropylene Glycol 400 (PPG-400) is a polyether diol of approximate molecular weight 400.
  • Suitable for Flexible polyurethane foam.
  • Suitable for Polyurethane elastomers.
  • Suitable for Polyether polyol synthesis.
  • Conforms to Q/320621HA046.
  • Specification data is drawn from documented client source records and cross-checked prior to publication.

Product gallery

Polypropylene Glycol 400 (PPG-400) product photo
Polypropylene Glycol 400 (PPG-400) product photo
Polyether Polyol product line
Polyether Polyol product line
Nantong Jienuo Chemical manufacturing facility, Hai'an, Jiangsu, China
Nantong Jienuo Chemical manufacturing facility, Hai'an, Jiangsu, China

Specifications & identifiers

Verified specification parameters for Polypropylene Glycol 400 (PPG-400) are listed below. Our technical team can provide the latest data sheet and COA on request.

CAS Number: 25322-69-4

Appearance
Colorless viscous liquid
Color (Pt-Co)
≤40
Hydroxyl value
255-312 mgKOH/g
Molecular Weight
360-440 (MW≈400)
Acid value
≤0.5 mgKOH/g
Water content
≤0.5%
Standard
Q/320621HA046.
Request specification sheet

Full technical documentation — SDS, HS code, COA and typical parameters (appearance, active content, pH, viscosity, boiling point, molecular weight) — is available on request for your grade and target market, with indicative pricing on enquiry.

Frequently asked questions

PPG-400 vs PEG, which do I reach for?

PPG-400 is a polypropylene glycol diol (MW 360-440, about 400), so it is the hydrophobic, lubricant-type polyol versus the water-soluble PEGs. Its hydroxyl value runs 255-312 mgKOH/g, and it is the polyol raw material for flexible PU foam, PU elastomers and polyether synthesis.

What acid and water specs do you publish for PPG-400, and is the CAS settled?

Published: acid value ≤0.5 mgKOH/g, water ≤0.5%, Color (Pt-Co) ≤40, a colorless viscous liquid, conforming to Q/320621HA046. On the numbers: our manual and an xlsx source differ on purity, water and acid (the xlsx claims ≥99.5% GC, water ≤0.1%, acid ≤0.03%), so we publish the manual values and the finer figures are being confirmed with our technical team. Request a lot COA for the exact batch. On identity, the manual gives CAS 25322-69-4 while the CAS reference also lists 9003-11-6 for the PPG family; we use the manual CAS as primary and can confirm which applies for your filing.

How do you cross-check the PPG-400 identity before shipment?

CAS 25322-69-4 is taken from the client manual (PPG series, p34) and cross-checked with the CAS reference (p1). We recommend a lot-specific COA for incoming QC.

How do I store and handle PPG-400?

It is a colorless viscous liquid with water ≤0.5%. A freezing point is not published, so confirm low-temperature handling against your storage range and request the TDS for any cold-flow guidance.

What is PPG-400 actually used to make?

Primarily flexible polyurethane foam and PU elastomers, plus polyether polyol synthesis, sealants and adhesives, and as a defoamer and lubricant intermediate. The ~400 MW is the workhorse grade for soft, open-cell foam systems.

Related products & categories

Why choose Nantong Jienuo Chemical Co., Ltd.

Nantong Jienuo Chemical Co., Ltd. is a manufacturer of industrial surfactants, polyether polyols and textile auxiliaries, supplying international B2B buyers with verified products and responsive technical support.

Direct manufacturer

As a manufacturer of industrial surfactants, polyether polyols and textile auxiliaries, we support grade selection, technical documentation and lead-time planning directly.

Established in 2020

Focused supply to international B2B buyers across surfactant and auxiliary categories, with documented grades and application know-how.

Global export experience

Active export to Southeast Asia, Europe, North America, India, Middle East, with documentation and grade support for diverse target markets.

Verified specifications

Product identity and specification blocks are cross-checked against client records; lot-specific COA and full technical documentation are available on request.

Broad application coverage

Products serve textile, metal processing, cosmetics, coatings, plastics, paper, pharmaceutical, food and agrochemical applications.

Inside our manufacturing environment

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