SILCOLAPSE 825 is efficient in aqueous and non-aqueous media.

SILCOLAPSE 825 is normally used at low concentrations between 1 and 100 mg/kg (or per litre). In pulp and paper applications typical use rates for 10 % emulsions are 100-2000 grams per ton of pulp.

SILCOLAPSE 825 can be:

  • Formulated into an aqueous emulsion by using commercially available emulsifiers or silicone emulsifiers like BLUESIL SP 3300.
  • Formulated with other Elkem SILCOLAPSE compounds in order to improve or change certain performance parameters.
  • Formulated with hydrocarbon/oxygenated solvents for some aqueous/non aqueous media.

Regulation compliancy: compliant with some Food Contact Regulations, please contact us if more information or certificates are requested.

Contact your local Elkem Silicones Technical Services experts for any information.

SILCOLAPSE 825 may be stored at temperatures between -20°C / -4°F and 40°C / 104°F for up to 12 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.


SILCOLAPSE 825 is a 100% active medium viscosity silicone foam control compound.

SILCOLAPSE 825 is part of family of high performance foam control compounds specially designed to control foam in aggressive foaming media with a very easy handling and processing.



  • Excellent antifoam efficiency with long lasting foam control performance.
  • High persistence even in alkaline conditions and at high temperatures.
  • Highly efficient compared to conventional organic oil-based antifoams. 
  • Excellent pulp drainage.

SILCOLAPSE 825 is used as is or formulated into emulsions used to control foam in high foaming and chemically aggressive foaming media.

  • Pulp industry:
    Chemical pulping operations like digestion and brown stock washing.
  • Oil & Gas industry:
    Upstream and downstream processes.
  • Aggressive Chemical Processes:

Any chemical process where standard performance antifoams provide only a marginal benefit.

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New Foam Control Agent For Pulp Operations Foam Control Agent For Pulp Operations












Antifoam / Defoamer / Defoamer