Polyalkyleneoxide-Modified Polydimethylsiloxane
- Silicones
- CAS 68938-54-5
- IUPAC: Poly(dimethylsiloxane), (2-hydroxymethylethoxy)-terminated
CarCareTruth tracks Polyalkyleneoxide-Modified Polydimethylsiloxane (CAS 68938-54-5) as a car-care ingredient.
Very low acute toxicity — oral LD50 >5000 mg/kg in rats per SDS data. Not classified under OSHA HCS at mixture concentrations found in vinyl protectants. No known carcinogenicity, reproductive toxicity, or sensitization. Used at very low concentrations (0.1–1.0%) as an emulsifier.
Polyalkyleneoxide-modified polydimethylsiloxane is a water-soluble silicone surfactant used to create stable silicone-in-water emulsions. In vinyl protectants, it functions as a co-emulsifier that helps PDMS disperse evenly in water-based formulas, improving the spreadability and uniformity of the protective film. At typical use concentrations (under 1%), it contributes negligibly to health risk — the compound has very low acute toxicity and is not GHS-classified as hazardous at mixture level.
Health & environment profile
- VOC
- no
- Prop 65 listed
- no
- Asthmagen
- no
- EPA Safer Choice
- no
- Aquatic toxicity
- no
- Biodegradable
- no
- Bioaccumulative
- no
- Persistent
- yes
- Ozone depleting
- no
- Microplastic
- no
- PFAS
- no
- Env. score
- 3/5
Common questions about Polyalkyleneoxide-Modified Polydimethylsiloxane
- What is Polyalkyleneoxide-Modified Polydimethylsiloxane used for in car care?
- Silicone surfactant and emulsifier — used in water-based silicone emulsions to stabilize the dispersion and improve wetting and spreading of the PDMS film on vinyl and plastic surfaces.
- Is Polyalkyleneoxide-Modified Polydimethylsiloxane a VOC?
- No. Polyalkyleneoxide-Modified Polydimethylsiloxane is not classified as a volatile organic compound (VOC).
- Is Polyalkyleneoxide-Modified Polydimethylsiloxane on California's Proposition 65 list?
- No. Polyalkyleneoxide-Modified Polydimethylsiloxane is not on California's Proposition 65 list.
No products on file contain this (yet)
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.