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Film Former

SEC-BUTYL METHACRYLATE

CAS 2998-18-7
43

Safety score · 0–100

Moderate

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A film-forming methacrylate monomer used in nail-coating polymers. Like other alkyl methacrylates, residual monomer is a documented skin sensitizer, restricting leave-on cosmetic use in the EU.

Function

FILM FORMING

Skin benefits

  • Forms flexible polymer film in nail products
  • Works in copolymer blends for wear and gloss

Known concerns

  • Methacrylate monomer — known skin sensitizer (EU CLP H317)
  • Eye and respiratory irritation
  • Restricted as a residual sensitising monomer in cosmetic polymers

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related film formers

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.