SILCOLAPSE 801 U1 is as efficient in aqueous and anhydrous media.
SILCOLAPSE 801 U1 is normally used at concentrations between 1 and 100 mg/kg (or per litre) of system to be defoamed.


  • Is efficient in aqueous and non-aqueous media.
  • Is normally used at low concentrations between 1 and 100 mg/kg (or per liter).
  • Can be formulated into an aqueous emulsion by using commercially available emulsifiers or silicone emulsifiers like BLUESIL SP3300.
  • Can be formulated with other Bluestar SILCOLAPSE compounds in order to improve or change certain performance parameters.
  • Can be formulated with hydrocarbon/oxygenated solvents for some aqueous/non aqueous media.
Regulation compliancy: please contact your local customer service.
Contact your local Elkem Silicones Technical Services Lab for any information. 
SILCOLAPSE 801 U1 may be stored for up to 18 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.Food Contact


SILCOLAPSE 801 U1 is a 100% active high viscosity foam control compound.
SILCOLAPSE 801 U1 is part of family of high performance foam control agent specially designed to control foam in aggressive foaming media.




Food Contact

  • Excellent defoaming efficiency with long lasting foam control performance.
  • High efficiency in alkaline conditions and at high temperature.
  • Low dose efficiency, at around 1 to 100 mg per kg of system to be defoamed.
  • Pulp washing efficiency and pulp quality are improved.
  • Excellent pulp drainage.

SILCOLAPSE 801 U1 is used as is or formulated into emulsions which can be used in control foam in high and aggressive foaming media such as:

  • Pulp industry: Recommended for use in the various processing steps (cooking, washing, screening, bleaching and sewage treatment).
  • Detergency: Liquids and powdered detergent, soap.
  • Chemicals: Distillation, extraction, filtration.
SILCOLAPSE 801 U1 can be used in emulsion form or as a booster to silicon and/or organic components. 

Asia Pacific;Europe Middle East Africa;Central and South America;North America




ColorGrey whiteMonocomp
Dry content100Monocomp%
Viscosity70000MonocompISO 2555cP

























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












Antifoam / Defoamer / Defoamer