Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
ADDSiL™ 8323
ADDSiL™ 8323

Silicone Leveling Agent

ADDSiL™ 8323 is an aralkyl-modified polymethylalkylsiloxane, it is for solvent-borne coating systems with a slight reduction of surface tension and slight increase of surface slip. Thermostable up to 250°C. It can provide good leveling with defoaming properties.

ADDSiL™ 8323

Technical Data

Color and Appearance

Transparent to slight yellowish clear liquid

Active Ingredient


Density 25°C



  • ADDSiL™ 8323 is a silicone leveling additive which has a defoaming effect/does not stabilize or only slightly stabilizes the foam depending on the polarity of the coating system.

  • ADDSiL™ 8323 is thermostable up to 250°C and does not negatively impact the intercoat adhesion.

  • In matt coatings ADDSiL™ 8323 is used to orientate the matting agent.

  • In wood and furniture silicone coatings, ADDSiL™ 8323 is used to orient the flatting agent in flat topcoats and in multi-coat systems. Even in difficult to flat high-solids coating systems,such as polyurethane, acid curing and unsaturated polyester coatings, its usage does not lead to shining up. In addition, optimal orientation of the flatting agent is achieved.

  • In flow coatings, ADDSiL™ 8323 stabilizes the flow curtain, and in metallic coatings it ensures consistent orientation of the aluminum pigments.

  • ADDSiL™ 8323 by SiSiB can prevent Bénard cell formation.

  • ADDSiL™ 8323 can increase the smoothness of the surface, therfore it improves the scratch resistance and abrasion resistance.

Packing and Storage

  • ADDSiL™ 8323 is supplied in 25Kg / 200Kg plastic drum or steel drum or according to customer's request.

  • In the original unopened packaging, ADDSiL™ 8323 has a shelf life of 24 months.

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ADDSiL™ 8323