RawSilTM 050E-AF

Silicone Based Defoamer Emulsion Excellence

RawSilTM 050E-AF is a versatile water based silicone antifoam emulsion with utility in many industrial applications where a highly efficient product with significant foam knockdown and good sustaining antifoam power is needed. RawSilTM 050E-AF is formulated to withstand cold temperature storage. 

Special Properties

  • Ready to use emulsion
  • Effective at low concentrations 
  • Effective over a wide pH range
  • Good cold weather storage profile

Typical Physical Properties

  • Appearance – white liquid 
  • Viscosity -1,000 cps % 
  • Solids – 13% 
  • pH-8 
  • Water solubility – completely miscible 
  • Ionic character – Nonionic 
These items are provided as general information only.
They are approximate values and are not considered part of the product specifications. 
RawSilTM 050E-AF has a shelf life of at least 9 months if stored in originally sealed containers at 25 °C or 70 °F. 


RawSilTM 050E-AF is designed for use where cold temperatures approaching -5°F may be encountered. Product dosage and location will vary with individual applications. Generally, RawSilTM 050E-AF should be added prior to foaming situations but avoiding high shear after the addition point if possible.
Industries where RawSilTM 050E-AF has application are: 
  • Pulp and Paper 
Oil and gas applications area include
  • Drilling muds
  • Cementing 
  • Gas treatment 
  • Distillation processes
RawSilTM 050E-AF is typically added neat, or as a lower solids dilution with water. Short term dilutions are stable for immediate use, however for dilutions requiring storage greater than 24 hours proper back thickening is needed.