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Karstedt's Catalyst 20% Pt | CAS: 68478-92-2

Synonym(s): Platinum(0), 1,3-divinyl-1,1,3,3-tetramethyldisiloxane complexes | Karstedt catalyst

Internal Heraeus Name: KARSTEDT Concentrate 20% sol. T3 LSAMP

Product Details

  • Color
  • Appearance
    Viscous Liquid  
  • Packaging/Sample size
    50  g
  • Packaging type
    Bottle, 100 ml  


Full Sample Price

Quantity/UoM Base

Additional Information


Heraeus Ident-No. 5100259
CAS - Number 68478-92-2

Precious Metal Content

Platinum 19.00 - 21.50%
Palladium 19.00 - 21.50%


Chemical formula [Pt2(C8H18OSi2)3]
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Benefits and Applications

The Karstedt 20% catalyst is used as a hydrosilylation catalyst. Hydrosilylation describes the reactions to build up high-molecular organosilicon compounds, which serve as the basis for manufacturing silicones. By using the Karstedt 20% catalyst, very low platinum concentrations are contained in the end product. Furthermore, platinum-catalyzed curing is achieved without volatile by-products. The range of catalysts provides options for cure characteristics for every application and can be shipped in various dilutions with polymers to meet customer needs. Heraeus can formulate the activity of the Karstedt’s Catalysts according to the desired catalyst concentration, stability and viscosity. A low turbidity upon mixing with polymers can be expected from the pale, colorless catalyst solution. Heraeus’ catalysts are produced with a narrow variance, which minimizes catalyst waste while delivering constant activity designed for a steady process. The Karstedt 20% catalyst is extremely user-friendly and processable.