​When stored in its original packaging at a temperature +2ºC and +30°C, BLUESIL FLD 21653 may be stored for up to 24 months from its date of manufacture.

Comply with the storage instructions and expiry date marked on the packaging.
Beyond this date, Elkem Silicones no longer guarantees that the product meets the sales specifications.​​
Avoid discharge into drains, water courses or onto the ground. Store in a cool, dry place with adequate ventilation. Keep away from incompatible materials, open flames, and high temperatures. Avoid contact with oxidizing agents. Suitable containers: Steel drums coated with epoxy-resin.Please consult the Safety Data Sheet of this product.


BLUESIL FLD 21653 is a high viscosity amino functionalized polydimethylsiloxane, based on our patented HALS (Hindered Amine Light Stabilizing) technology.


Functional Fluid


BLUESIL FLD 21653 is particularly recommended to be used as a blend with our BLUESIL FLD HYDROSOFT, typically in ratio 50:50 or 40:60, in order to get macro or micro-emulsions imparting to treated fabrics high hydrophilic properties and full soft hand.

When applied to textiles in combination with BLUESIL FLD HYDROSOFT, BLUESIL FLD 21653 imparts properties of a good compromise between softness and hydrophilicity, whilst remaining non-yellowing due to the presence of HALS groups.

Both products are perfectly compatible and easy to blend. Formulation of those blends into micro or macro-emulsion will typically be made using C13 [EO]6 alcohol ethoxylated surfactants.

The compromise between hydrophilicity and softness can be adjusted by changing the ratio 21653/HYDROSOFT in the formulation, 21653 bringing more softness and HYDROSOFT more hydrophilicity.​​

BLUESIL FLD 21653 has been developed to be blended with BLUESIL FLD HYDROSOFT for the formulation of emulsions in order to increase the softness without significant loss in hydrophilicity.

The application onto textile surfaces imparts the following properties:

  • Non-yellowing even at high temperatures.
  • Good compromise softness / hydrophilicity.​​

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

For information about Storage and Shelf Life for this product, please download the Technical Data Sheet.




Viscosity25000MonocompNF T 76102mPa.s
AppearanceViscous slightly hazy liquidMonocomp











































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