invention have the further advantage that they exhibit good storage stability and low shrinkage the compositions of the invention can be used for all applications for which it is possible to use compositions which are storable in the absence of water and which on ingress of water crosslink at room temperature to form elastomers the compositions of the invention are suitable as elastic adhesives or sealants for the sealing of joints gaps or junctions for example in the sanitary sector window construction glazing with building materials construction elements automobiles rail vehicles aircraft boats household appliances and machines in the examples described below all viscosity figures are based on a temperature of 25 u00b0 c unless otherwise indicated the examples below are conducted under the pressure of the surrounding atmosphere i e approximately at 1000 hpa and at room temperature i e at approximately 23 u00b0 c or at a temperature which comes about when the reactants are combined at room temperature without additional heating or cooling and also at a relative atmospheric humidity of approximately 50 furthermore all data in parts and percentages unless otherwise indicated are by weight for the purposes of the present invention the viscosities are determined as follows the measurements of the dynamic viscosity of the organopolysiloxanes are based on din 53019 1 on a plate cone rotational viscometer featuring a cone with a diameter of 50 mm and a cone angle of 2 u00b0 at 25 u00b0 c with a shear rate of 1 1 s to 10 1 s evaluation takes place via linear regression in the linear range the viscosity figures and paste properties of the crosslinkable compositions of the invention are based on measurement in accordance with din.