Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
ADDSiL™ 11050
ADDSiL™ 11050

Silicone Surfactant for Rigid Foam

ADDSiL™ 11050 surfactant is a non-hydrolysable silicone glycol copolymer for manufacturing of rigid polyurethane foams.

ADDSiL™ 11050 is a general-purpose foam stabilizer used for the production of polyurethane rigid foam plastic, and it can be used in both hydrocarbons (cyclopentane), HCFC 141b and high water content foaming system.

ADDSiL™ 11050

Technical Data


Transparent viscous liquid

Viscosity 25°C

800+/-200 mPa.s

Density 25°C

1.05+/-0.02 g/cm3

Freezing point

< 0°C

pH (4% water solution)



  • ADDSiL™ 11050 silicone surfactants for polyurethane foam can be used in foaming systems including hydrocarbons (Cyclopentane) and high water content foaming system. It provides good stabilization of foam growth in pour-in-place applications, in systems using water and HCFC 141b as blowing agents as well as HFCs or HFOs.

  • ADDSiL™ 11050 delivers extremely fine celled foams, thus obtaining foams with very good thermal insulation performances

  • ADDSiL™ 11050 silicone surfactant for rigid polyurethane foam by SiSiB provides good solubility of cyclo-pentane and cyclo/iso-pentane mixtures in the typical polyol formulations used in the appliances industry

  • Recommended use levels are 1.0~2.5 pphp.

Packing and Storage

  • ADDSiL™ 11050 surfactant will become hazy when stored at temperatures below 20°C and will solidify to a soft silicone wax at temperatures below 10°C. The product should be warmed to room temperature and stirred before use.

  • ADDSiL™ 11050 is supplied in net weight 200Kg steel drum or 1000Kg IBC tote.

  • When stored at ambient temperature in the original unopened packing, ADDSiL™ 11050 has a shelf life of 12 months from the date of production.

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