Triethoxycaprylylsilane for pigment coating

Product Name: LK-CTS 32

What Is Triethoxycaprylylsilane?

LK-CTS 32 is a high-purity Triethoxycaprylylsilane, also known as Octyltriethoxysilane—a monomeric alkyl alkoxysilane widely used in advanced surface treatment and coating applications. This highly reactive silane compound forms strong chemical bonds with inorganic UV filters such as titanium dioxide (TiO₂) and zinc oxide (ZnO) upon exposure to moisture, creating a durable, hydrophobic coating around each microscopic particle.

With excellent solubility in inorganic solvents, Triethoxycaprylylsilane produces clear, colorless, and stable solutions. This makes LK-CTS 32 ideal for use in cosmetic formulations, industrial coatings, paints, and nano-dispersion technologies. It improves dispersion, enhances water resistance, and strengthens surface adhesion, making it a key performance additive in high-end formulations.

Key features

  • Excellent water resistance even at low dosage
  • Easy dispersion in formulations
  • Durable and long-lasting
  • Strong substrate bonding, significantly reducing water uptake
  • Minimal to no change in visible appearance of the treated surface

Technical Details:

Physical Parameters Values
Appearance Clear, colorless liquid
Solubility Soluble in organic solvents

Applications of Triethoxycaprylylsilane

Sunscreen minerals – Surface coating treatment

  • Used to modify and stabilize the dispersion of minerals such as titanium dioxide (TiO₂) and zinc oxide (ZnO) in sunscreens and other skincare products, reducing their photocatalytic activity and enhancing uniformity in oil- or silicone-based formulations.
  • Improved dispersion in sunscreen: Treated particles enhance the sensory profile by reducing chalkiness and improving spreadability.

Color cosmetics – Pigment surface coating

  • Long-lasting water resistance: Increases water resistance in waterproof and long-wear cosmetic formulations.
  • Improved dispersion in color cosmetics: A treated pigment enhances the sensory profile by preventing patches and improving spreadability.
Triethoxycaprylylsilane
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