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CarCareTruth

Methyl Methacrylate

  • Esters
  • CAS 80-62-6
  • IUPAC: Methyl 2-methylprop-2-enoate

Methyl Methacrylate (CAS 80-62-6) appears in 1 of the 2,122 car-care products CarCareTruth tracks (as of August 2026). It is classified as a VOC.

Not on the California Prop 65 list (cross-checked against the OEHHA Prop 65 chemical list; no CAS 80-62-6 entry). As the pure monomer, GHS classifications typically include flammable liquid, skin/eye irritation, and skin sensitization at higher concentrations; at the trace regulatory-disclosure concentrations seen in finished lubricant products (frequently under 0.1% wt, a residual from a polymer additive's manufacture rather than an intentional ingredient), it does not typically drive a mixture-level GHS hazard classification.

Methyl methacrylate (MMA, CAS 80-62-6) is the monomer used to manufacture polymethyl methacrylate (PMMA) and other acrylic/methacrylate copolymers, including several viscosity-index-improver and pour-point-depressant polymer additives used in lubricant formulations. In finished automotive fluids it typically appears, if at all, as a trace residual monomer left over from the polymerization of an additive component, disclosed in SDS regulatory sections (CERCLA/SARA, HAPs, Clean Water Act) at low concentrations rather than as an intentional, functional ingredient in its own right. It is not on the California Proposition 65 list. As a pure substance it is a flammable liquid with skin and eye irritation potential and a documented skin-sensitization hazard, but a trace regulatory disclosure at well under 1% in a finished lubricant does not, by itself, indicate the finished product carries that hazard profile at the mixture level.

Health & environment profile

VOC
yes
Prop 65 listed
no
Asthmagen
no
EPA Safer Choice
no
Aquatic toxicity
no
Biodegradable
yes
Bioaccumulative
no
Persistent
no
Ozone depleting
no
Microplastic
no
PFAS
no
Env. score
3/5
Purpose: Monomer/regulatory trace constituent in petroleum-derived lubricant additive packages (e.g. viscosity-index-improver polymer residuals); not typically an intentional functional additive at the finished-fluid level

Common questions about Methyl Methacrylate

What is Methyl Methacrylate used for in car care?
Monomer/regulatory trace constituent in petroleum-derived lubricant additive packages (e.g. viscosity-index-improver polymer residuals); not typically an intentional functional additive at the finished-fluid level
Is Methyl Methacrylate a VOC?
Yes. Methyl Methacrylate is classified as a volatile organic compound (VOC).
Is Methyl Methacrylate on California's Proposition 65 list?
No. Methyl Methacrylate is not on California's Proposition 65 list.
Is Methyl Methacrylate biodegradable?
Yes. Methyl Methacrylate has a confirmed biodegradable profile.

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.