Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
ADDSiL™ 8427
ADDSiL™ 8427

Polyurethane Synthetic Leather Modifier

ADDSiL™ 8427 is a primary hydroxyl-functional polyether-modified polydimethylsiloxane. It is used for organic resin modifier and thread lubricant.

ADDSiL™ 8427

Technical Data

Color and Appearance

Slight amber clear liquid

Active Ingredient


Flash Point


Density 25°C


Viscosity 25°C

50~90s (T-4 viscometer)

Recommended Levels



  • ADDSiL™ 8427 silicone additives can be used directly or diluted before application or addition to a resin system. Dilution can be accomplished by organic solvents or water.

  • ADDSiL™ 8427 soluble in water up to 20% solids add-in. Before addition to a water-based system, a 20% solid pre-dilution should be made.

Packing and Storage

  • ADDSiL™ 8427 for silicone resin system is supplied in 25Kg / 200Kg plastic drum or steel drum or according to customer's request.

  • In the original unopened packaging, ADDSiL™ 8427 has a shelf life of 24 months.

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ADDSiL™ 8427