Technical Library

Triethoxycaprylylsilane (TC)-Treated Pigments; INCI name: Triethoxycaprylylsilane

Triethoxycaprylylsilane, C8 (TC)-treated pigments and fillers are coated with an alkyl silane which provides a very hydrophobic coating that increases the ease of particle dispersion in natural and synthetic fluids and helps to stabilize particles in emulsion systems.

TC Treatment Benefits:

  • Improves pigment performance in oils and silicones
  • Economical hydrophobic pigment treatment
  • Decreases oil absorption
  • Improves wear on skin

Recommended Uses:

  • BB creams
  • Foundations
  • Pressed powders
  • Hot pours

* For pigments not linked to product pages, please contact Personal Care team for information or for custom treatments.


Conditioning Lipstick with TC Pigments

Unlike many silicones and silicone derivatives, Vertasil® Tocopheryloxypropyltrisiloxane TM-VE1 is easily incorporated into lip products due to its solubility of in a range of polar compounds, including castor oil. The benefits of Vertasil® Tocopheryloxypropyltrisiloxane TM-VE1 in lip products include conditioning, softening, and protection against the drying effects of the environment. The Triethoxycaprylylsilane (TC)-treated pigments are easy to disperse into oil and improve wear on the lips. Stearyl Triethoxysilane (SS) pearls have a more luxurious feel with improved adhesion versus untreated pearls.

INCI NameIngredientSupplierWeight %
Phase A
Euphoria Cerifera (Candelilla) WaxCandelillaRoss Wax6.00
Microcrystalline WaxMicrowax SP 19Strahl & Pitsch3.00
OzokeriteOzokerite 170DRoss Wax2.00
Copernicia Cerifera (Carnauba) WaxCarnauba WaxStrahl & Pitsch1.00
Triisostearyl CitrateSchercemol™ TISCLubrizol30.00
Ricinus Communis (Castor) Seed OilCrystal O®Vertellus13.50
OctyldodecanolEutanol G®BASF Care Creations5.00
Octyldodecyl StearateCeraphyl™ ODSAshland7.50
TocopheryloxypropyltrisiloxaneVertasil® Tocopheryloxypropyltrisiloxane TM-VE1Gelest2.50
Phase B
Ricinus Communis (Castor) Seed OilCrystal O®Vertellus10.00
Iron Oxides (&) TriethoxycaprylylsilaneRed Iron Oxide TCGelest6.50
Titanium Dioxide (&) TriethoxycaprylylsilaneTitanium Dioxide TCGelest2.50
Blue 1 LakeC39-4433Sun Chemical0.10
Red 7 LakeC19-7711Sun Chemical0.75
Red 6 LakeC19-7712Sun Chemical1.35
Phase C
Mica & Titanium Dioxide (&) Silica (&) Stearyl TriethoxysilaneTimiron® Splendid Red, SS-TreatedEMD/Gelest8.00

  • Combine Phase A and heat to 80-85 °C. Slowly stir under a propeller blade. Hold temperature.

  • Disperse Phase B using a roller mill.

  • Once Phase A is melted, add Phase B to Phase A and stir until pigments are fully dispersed.

  • Add Phase C and stir until dispersed and uniform. Cool to pouring temperature while mixing, and then pour.
  • See in Formulary.