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Polyalkylsiloxane with Functionalized Silica

  • Silicones
  • CAS trade-secret
  • IUPAC: Unknown (trade secret)

Trade-secret silicone-silica polymer system. No GHS hazard classification in available SDS data. Low systemic toxicity expected for organosiloxane polymers; no H-codes assigned at mixture level.

Polyalkylsiloxane with functionalized silica is the protection chemistry in Meguiar's M300 So1o All-In-One. The manufacturer lists it as a trade secret at 3–7% of the formula in SDS §3. This class of ingredient represents silicone polymers (polyalkylsiloxane) bonded to or combined with functionalized silica particles — the combination delivers hydrophobic water-beading behavior and durable adhesion to clear-coat surfaces. Organosiloxane polymers are broadly used in personal care and industrial coating products. They bond to surfaces via the functionalized silica portion, leaving a water-repelling silicone polymer layer. No health H-codes are present for this ingredient in the SDS, and the product's mixture-level classification is not hazardous. Trade-secret designation means CAS number and full chemical identity are withheld per manufacturer IP protection.

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
Purpose: Silica-based protective polymer that delivers water-beading and durable paint protection in one-step polish products

1 product contain this

Health summaries are editorial — we synthesize from SDSs, peer-reviewed sources, and regulatory listings. Not medical advice.