Condensation Curing Silicone Sealant Formulation Guide

  OH Polymer Silane Crosslinkers
  Silane Adhesion Promoters Silane Coupling Agents
  Fumed Silica Tin Catalysts
  Plasticizers Water Scavengers
Our products are widely used in formulation of condensation curing silicone sealants.
Silicone OH Polymer (Base Polymer)
The silanol (-OH) terminated silicone polymer is the basis for the formulation of one-component, moisture curing RTV silicones and two-component, condensation curing RTV silicone compounds. The synthesis of silicone polymer is a multistep process beginning with elemental silicon.
SiSiB® CODE CHEMICAL NAME CAS NO.
SiSiB® PF1070 SILANOL TERMINATED POLYDIMETHYLSILOXANE 70131-67-8
   
  SiSiB® PF1070 OH polymer are polydimethylsiloxanes with terminal silanol groups used as base polymers in condensation curing silicone elastomers. SiSiB® PF1070 OH polymer is available in differen viscosity levels.  
  750cst, 1500cst, 3500cst, 5000cst, 10000cst, 20000cst, 50000cst, 80000cst.
Low viscosity fluids (SiSiB® OF0025, PF1070, 25cSt. – 750cSt.)
Middle viscosity fluids (SiSiB® PF1070, 1000cSt. - 10000cSt.)
High viscosity fluids (SiSiB® PF1070, 20000cSt. - 150000cSt.)
 
SiSiB® PF1071 ALKOXY TERMINATED SILICONE POLYMER --
   
  SiSiB® PF1071 Polymer are Alkoxy functionalized silicone polymers, It can be formulated with the typical additives for condensation-type silicones (tin catalysts, silane-based adhesion promoters, plasticizers etc.). The amount of methoxy silane crosslinkers can be reduced to a great extent in this process as the polymer already carries the corresponding methoxy silane groups.  
SiSiB® PF1078 OH TERMINATED PHENYL SILICONE POLYMER --
 
SiSiB® PF1079 OH TERMINATED FLUORO SILICONE POLYMER 68607-77-2