Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
ADDSiL™ 8900
ADDSiL™ 8900

Silicone Defoamer

ADDSiL™ 8900 is a foam-releasing and antifoaming agent particularly for thick film epoxy floor coatings and other high-build systems. 

It is an organo-modified polysiloxane, contains hydrophobic fumed silica. ADDSiL™ 8900 can be used in solvent-free and solvent-borne epoxy floor coatings and high-build coating systems. It is also suitable in silk screen ink.

ADDSiL™ 8900

Technical Data

Color and Appearance

Translucent ivory liquid

Non-volatile content

>96% (140°C, 2h)

Flash Point


Density 25°C


Viscosity 25°C

S-X (Bubble viscometer)

Recommended Levels



  • Incorporate ADDSiL™ 8900 before grinding or processing to achieve the optimum effect. When post-addition is necessary, it is recommended to incorporate ADDSiL™ 8900 with sufficient mixing.

  • Due to its high active content, ADDSiL™ 8900 silicone additives can be prediluted to a 10% suspension with an aromatic solvent. This can allow easier incorporation. Such solutions have only limited storage stability as the hydrophobic silica will tend to settle out.

  • ADDSiL™ 8900 exhibits thixotropic properties. Its viscosity may increase during storage. This is normal and it is advisable to stir well before use.

Packing and Storage

  • ADDSiL™ 8900 silicone coating is supplied in 25Kg / 200Kg plastic drum or steel drum or according to customer's request.

  • In the original unopened packaging, ADDSiL™ 8900 has a shelf life of 24 months.

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