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CarCareTruth

Polyethylene-Propylene Glycol (PEG-PPG Copolymer)

  • Nonionic surfactants
  • CAS 9003-11-6
  • IUPAC: Poly(oxyethylene-co-oxypropylene) glycol

Polyethylene-Propylene Glycol (PEG-PPG Copolymer) (CAS 9003-11-6) appears in 1 of the 2,122 car-care products CarCareTruth tracks (as of August 2026).

Low acute toxicity; not classified for skin, eye, or respiratory hazards on typical SDS Section 2/3 entries. No asthmagen or Prop 65 flags on file for this CAS number.

Polyethylene-propylene glycol (PEG-PPG copolymer, CAS 9003-11-6) is a synthetic nonionic block copolymer built from alternating ethylene oxide and propylene oxide units — chemically related to poloxamer surfactants used across industrial and consumer formulations. In abrasive car-care products it acts as an emulsifier and mild thickener, helping keep the mineral abrasive (commonly aluminum oxide) evenly suspended in the liquid carrier so it applies smoothly rather than settling out.

It typically carries no GHS hazard classification at the concentrations used in headlight-restoration and polish formulas, and SDS documents citing this CAS number generally report "not classified" for skin, eye, and respiratory endpoints. Ecological data (biodegradability, aquatic toxicity) is frequently reported as "no data available" rather than affirmatively benign — a gap in testing, not a confirmed safety finding.

Health & environment profile

VOC
no
Prop 65 listed
no
Asthmagen
no
EPA Safer Choice
no
Aquatic toxicity
no
Biodegradable
no
Bioaccumulative
no
Persistent
no
Ozone depleting
no
Microplastic
no
PFAS
no
Env. score
3/5
Purpose: Nonionic block-copolymer emulsifier/thickener — stabilizes the abrasive slurry and improves spreadability

Common questions about Polyethylene-Propylene Glycol (PEG-PPG Copolymer)

What is Polyethylene-Propylene Glycol (PEG-PPG Copolymer) used for in car care?
Nonionic block-copolymer emulsifier/thickener — stabilizes the abrasive slurry and improves spreadability
Is Polyethylene-Propylene Glycol (PEG-PPG Copolymer) a VOC?
No. Polyethylene-Propylene Glycol (PEG-PPG Copolymer) is not classified as a volatile organic compound (VOC).
Is Polyethylene-Propylene Glycol (PEG-PPG Copolymer) on California's Proposition 65 list?
No. Polyethylene-Propylene Glycol (PEG-PPG Copolymer) is not on California's Proposition 65 list.

1 product contain this

Related

Health and environment notes translate the manufacturer Safety Data Sheet, the GHS classification, and authoritative regulatory listings (California Prop 65, EPA). Not medical advice. They describe the ingredient itself; whether a hazard applies to a finished product depends on its concentration and how it's used.