Product Code

AC-TOS

Tetrakis(methylethylketoxime)silane

CAS Number
34206-40-1
EINECS
251-882-0

Description

Oxime functional silane crosslinker for neutral-cure one-component silicone sealants and adhesives. Non-corrosive to metals and compatible with a wide range of substrates, including concrete and marble where acetoxy systems cannot be used. This grade acts as a chain extender and network builder; usually blended with a trifunctional oxime silane to tune modulus and elongation. It uses the standard oxime leaving group: balanced cure speed, good storage stability and low cost. Supplied in crystalline form; melt or dissolve before dosing.

Synonyms

TOSTetraoxime silaneTetra(methyl ethyl ketoxime) Silaneoximesilanemoisture cure crosslinkercrosslinking agent2-Butanone, O,O',O'',O'''-silanetetrayltetraoximeTetra(ethyl methyl ketoximo)silaneTetrakis((sec-butylideneamino)oxy)silaneC16H32N4O4Si

Key applications

  • Neutral-cure RTV-1 construction sealants
  • Electronic and electrical potting
  • Automotive and industrial assembly
  • Insulating glass and facade sealants

Characteristics

FunctionalityOxime
Cure by-productKetoxime
Typical useNeutral cure RTV-1 sealants
Molecular formulaC16H32N4O4Si
Molecular weight372.54 g/mol

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