KATHON™ for Silicone Sealants

Microbicides for silicone sealants


KATHON™ 910 SB biocide has been specifically designed to meet the requirements for use in acetoxy silicone sealants, the active ingredient, 4.5-Dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT), shows excellent efficacy against fungi and bacteria under the standard ISO 846 method B test conditions including Aspergillus, Alternaria and Candida species and accelerated leaching. Due to the very low solubility of DCOIT, the leaching from silicone sealants is minimal and long term protection is provided.

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Used In:

  • Silicone sealants
  • Caulking materials


  •  Broad spectrum
  •  Excellent efficacy against fungi and bacteria
  •  Very low leaching
  •  No metals or arsenic compounds
  •  Nontoxic and biodegradable at use/release concentrations

Typical Properties

Specific Gravity:  Approx. 0.9 g/cm³

Boiling Point:  >280°C (Solvent)

Flash Point:  140°C (Flash Point)

Refractive Index:  1.489 (Nd20)

Viscosity:   Approximately 10 Mpas (Brookfield Viscosity)


  • Asia Pacific
  • Europe
  • Latin America