Silicone impression material with accelerated curing

Curable composition comprising addition-crosslinkable organofunctional polysiloxanes comprising

• i. addition-crosslinking polysiloxanes comprising at least two terminal ethylene groups and
• ii. polysiloxanes comprising at least two Si—H groups, wherein
• the polysiloxanes comprising Si—H groups comprise at least two polysiloxane compositions with different contents of Si—H groups, wherein a first polysiloxane composition (PS1) has a content of Si—H groups of 1 to 3.5 mmol/g and a second polysiloxane composition (PS2) has a Si—H group content of 3.8 mmol/g to 15 mmol/g, wherein the first polysiloxane composition (PS1) with a Si—H group content and the second polysiloxane composition (PS2) having a Si—H group content in a weight ratio of 1:1.5 to 1:10, and
• wherein the molar ratio of Si—H groups of the polysiloxanes to ethylene groups of the polysiloxanes is from 4:1 to 10:1, and optionally comprising a hydrosilylation catalyst, wherein the curable composition comprises essentially no monounsaturated compound of formula I
• with
• R each independently selected from H, monovalent alkyl group with 1 to 22 C atoms, aryl group with 16 to 12 C atoms, O—SiR43 group, wherein
• R optionally comprises hetero atoms, with the provision that R is not an alkoxy group or arylalkoxy group,
• R1, R2, R3 are each independently selected from H, monovalent alkyl group with 1 to 22 C atoms, aryl group with 6 to 12 C atoms and optionally each independently comprise hetero atoms,
• R4 is a monovalent alkyl group with 1 to 22 carbon atoms or an aryl group with 6 to 12 carbon atoms, wherein optionally two or three R4 radicals form a cyclic or polycyclic structure in O—SiR43,
• A is a bivalent linear, branched or cyclic hydrocarbon group with 1 to 12 C atoms, optionally comprising an aromatic with at least one methylene group which is directly covalently bonded to the aromatic, optionally comprising —O-atoms.