| The cross-linkers of the Cross-linker 100 and 200 series are polydimethyl siloxanes comprising SiH groups in the polymer chain. The cross-linkers of the Crosslinker 200 series additionally have terminal SiH groups. Both cross-linker types are used in polyaddition silicones. Both series are available with different viscosity levels and SiH contents. Other SiH contents and viscosity levels can be delivered upon request. Application: When working with two-component silicone formulations, it must be ensured that Pt-catalyst (e. g. Catalyst 500 series) and SiH cross-linkers are kept strictly separated. In general, the composition must be selected so that the total formulation contains approximately a double molar excess of SiH groups as compared with vinyl groups. Information provided by Evonik |
