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Naphtha (Petroleum), Light Alkylate

  • Aliphatic solvents
  • CAS 64741-66-8
  • IUPAC: Naphtha (petroleum), light alkylate

Naphtha (Petroleum), Light Alkylate (CAS 64741-66-8) appears in 1 of the 1,812 car-care products CarCareTruth tracks (as of June 2026). It is classified as a VOC.

High-flash-point alkylate petroleum cut used as carrier; classified as STOT RE Cat 1 driver in some formulations; low acute toxicity but repeated exposure to vapors carries organ damage concern.

Naphtha (petroleum), light alkylate (CAS 64741-66-8) is a petroleum-derived aliphatic hydrocarbon cut obtained from the alkylation of light petroleum fractions. It is used as a fast-evaporating carrier solvent in ceramic coatings, paint protectants, and similar surface treatments where controlled solvent release enables active silane or siloxane ingredients to deposit and cure on treated surfaces.

The light alkylate fraction is distinct from the heavy alkylate (CAS 64741-65-7) by its lower boiling range and higher volatility. Formulations using this solvent as a primary carrier typically have flash points below 25°C, classifying the final product as a flammable or highly flammable liquid. The STOT RE Cat 1 classification (H372 — causes damage to organs through prolonged or repeated exposure) seen in products containing this solvent class reflects the cumulative nervous system effects of petroleum hydrocarbon inhalation under occupational conditions, not from brief consumer application.

Health & environment profile

VOC
yes
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
2/5
Purpose: Light alkylate petroleum-derived carrier solvent used in ceramic coatings and protectants; provides fast-evaporating solvency for depositing silane and siloxane active ingredients on surfaces

Common questions about Naphtha (Petroleum), Light Alkylate

What is Naphtha (Petroleum), Light Alkylate used for in car care?
Light alkylate petroleum-derived carrier solvent used in ceramic coatings and protectants; provides fast-evaporating solvency for depositing silane and siloxane active ingredients on surfaces
Is Naphtha (Petroleum), Light Alkylate a VOC?
Yes. Naphtha (Petroleum), Light Alkylate is classified as a volatile organic compound (VOC).
Is Naphtha (Petroleum), Light Alkylate on California's Proposition 65 list?
No. Naphtha (Petroleum), Light Alkylate 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.