CAS 25322-69-4|Polyether Polyol

Polypropylene Glycol (PPG)

Polyether polyol in MW grades 425–4000 — essential building block for polyurethane production, fire-resistant hydraulic fluids, and synthetic lubricants.

MW Range

425 – 4000 g/mol

Flash Point

>100 °C

DOT Status

Not regulated

Packaging

Drum / Tote / Bulk

Grade Comparison

GradeAvg. MWViscosityPrimary Use
PPG 425~425 g/mol~75 cSt at 25 °CPolyurethane flexible foam, lubricants, and hydraulic fluids.
PPG 1000~1000 g/mol~160 cSt at 25 °CPolyurethane elastomers, sealants, and CASE applications.
PPG 2000~2000 g/mol~330 cSt at 25 °CPolyurethane coatings, adhesives, and high-performance elastomers.
PPG 4000~4000 g/mol~900 cSt at 25 °CSpecialty polyurethane and high-MW lubricant applications.
Polypropylene Glycol (PPG)HO[CH₂CHCH₃O]nHMW range: 425 – 4000 g/molCAS 25322-69-4 | Polyether Polyol

Selecting the Right PPG Grade

Low MW (PPG 425)

Flexible foam, lubricants, and hydraulic fluid applications requiring lower viscosity.

Mid MW (PPG 1000, 2000)

Polyurethane elastomers, CASE applications, and sealants requiring balanced flexibility and strength.

High MW (PPG 4000)

Specialty polyurethane and high-viscosity lubricant applications.

Industrial Applications

Polyurethane Production

Primary polyol in flexible and rigid polyurethane foam, elastomers, coatings, adhesives, sealants, and elastomers (CASE).

Hydraulic Fluids

Fire-resistant water-glycol hydraulic fluids for steel mills, die casting, and mining. PPG improves viscosity and lubricity.

Lubricants & Metalworking

Base fluid in synthetic lubricants, gear oils, and metalworking fluids. Excellent thermal stability and lubricity.

Functional Fluids

Heat transfer fluids, brake fluids, and compressor lubricants where low toxicity and biodegradability are required.

Surfactants & Demulsifiers

Building block for nonionic surfactants, demulsifiers, and defoamers used in oilfield and industrial applications.

Personal Care

Low-MW PPG grades used as emollients, solvents, and viscosity modifiers in cosmetics and personal care products.

Safety & Regulatory

NFPA Health1 — Slight hazard
NFPA Flammability1 — Slight hazard
NFPA Reactivity0 — Stable
Flash Point>100 °C (>212 °F) — Combustible
OSHA PEL (TWA)No established PEL
DOT Hazard ClassNot regulated
Aquatic ToxicityLow — not classified as aquatic hazard
BiodegradabilityReadily biodegradable

SDS and certificate of analysis available for each grade upon request.

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PPG 425, 1000, 2000, and 4000 in drums, totes, and bulk tanker delivery across Texas and the Gulf Coast.

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