Siltech – Silicone Quats and Silane Quats for Coatings and Anti-Bacterials


Siltech – Silicone Quats and Silane Quats for Coatings and Anti-Bacterials

Siltech offers 3 main categories of silicone quaternary compounds (or “quats” for short), under the Silquat® trademark.

  • Firstly, there are silicone dialkyl quats, where the alkyl group can be C2 or C18. Most of these are clear amber liquids, consisting of 70% silicone quat and 30% hexylene glycol.  The structure can be multi-functional or linear di-functional, and multi-functional is shown below:

“a” and/or “b” can be changed in order to change the amount of hydrophobicity and solubility.

For Coatings applications, these products can be used to:

  • Provide surface slip
  • Lubricate
  • Impart excellent water and solvent repellency
  • Add anti-static properties
  • Impart softness

 

  • Secondly, there are silicone polyether fatty quats, which have the following structure:

As shown, the fatty group can range from lauric (C12) to stearic (C18).

These products are low in viscosity, and are 40% active in water.

 

  • Thirdly, there are silane quats, as shown below:
  • This particular product is water-soluble, and can potentially be used in situations where anti-bacterial surfaces may be required.

The molecule is reactive, and can be methoxy or ethoxy-functional.  This means that it can be reacted into coatings and onto surfaces for substantivity too.

 

Please contact dave.wilson@siltech.com