Triethoxy(vinyl)silane
- Ceramic (SiO₂)
- CAS 78-08-0
- IUPAC: triethoxy(ethenyl)silane
CarCareTruth tracks Triethoxy(vinyl)silane (CAS 78-08-0) as a car-care ingredient. It is classified as a VOC.
Substance-level GHS: flammable liquid (H226) and acute toxicity Cat 4 by inhalation (H332). Releases ethanol on hydrolysis. At the SDS §3 mixture concentration in PPF coating formulations (typically 10–30%), the substance does not transfer H332 to mixture classification under the additivity rule; mixture-level H319 reflects the formulated product, not the ingredient in isolation.
Triethoxy(vinyl)silane (CAS 78-08-0) is a vinyl-substituted trifunctional alkoxysilane used as a co-carrier and reactive monomer in silane-based ceramic coatings for paint protection film and vinyl wrap. The vinyl group provides an additional reactive site for radical-initiated or UV-cured crosslinking pathways, while the three ethoxy groups hydrolyze on moisture contact to release ethanol and condense the silane into the network.
Health: Substance-level classifications include H226 (flammable liquid Cat 3) and H332 (acute toxicity inhalation Cat 4). These do not necessarily transfer to mixture-level SDS §2 classification at typical 10–30% formulation concentrations under GHS additivity rules. Releases ethanol on hydrolysis.
Environment: Not classified as aquatically toxic at typical formulation concentrations. Hydrolysis products are water-soluble; the cured network remains bonded to the coated film.
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
- 4/5
Common questions about Triethoxy(vinyl)silane
- What is Triethoxy(vinyl)silane used for in car care?
- Vinyl-substituted alkoxysilane co-carrier and reactive monomer that adds a crosslinking site in silane-based coatings
- Is Triethoxy(vinyl)silane a VOC?
- Yes. Triethoxy(vinyl)silane is classified as a volatile organic compound (VOC).
- Is Triethoxy(vinyl)silane on California's Proposition 65 list?
- No. Triethoxy(vinyl)silane 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.