BLUESIL FLD 1669 may be stored at temperatures between 2°C / 36°F and 40°C / 104°F for up to 24 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.


BLUESIL FLD 1669 is is a α/ω carboxy functionalised Polydimethylsiloxane fluid.

Water Repellency

Functional Fluid

  • Low surface tension.
  • Water repellency.
  • Excellent weatherability.
  • Forms complexes with transition metal salts.
  • Capable of forming hydrogen bonds.
  • Excellent anchorage to polar surfaces.
  • Imparts water repellency to polar surfaces.

BLUESIL FLD 1669 has been developed to impart permanent water repellency to chrome tanned leather.
It may also be used in other domains where a permanent hydrophobic treatment is required, such as the water-repellency of polar surfaces.
When used as a pigment or filler treatment it increases their compatibility with organic polymers.
BLUESIL FLD 1669 may also be used as a polymer chain modifier.
It can be used as a diacid component in polycondensation reactions.
Thus the silicone function may be introduced into a large number of organic polymers (PA, PES, polyester resins, PET...).
BLUESIL FLD 1669 imparts typical silicone properties to polyesters and polyamides such as:

  • Anti-blocking
  • Non-stick properties
  • Abrasion resistance
  • Scratch resistance
  • Lubrication:
    • Internally : makes extrusion easier
    • Externally: lubricates fibres…
  • Water repellency
  • Weatherability
  • Water vapour permeability
  • Low temperature flexibility
  • Impact modifier
  • High temperature stability
  • Electrical insulation

Asia Pacific;Europe Middle East Africa;Central and South America;North America




Dry content100Monocomp%
Viscosity250MonocompNF T 76102mm2/s
AppearanceClear liquidMonocomp
Acidity content45Monocompmg/g