Curable polysiloxane coating composition

A curable composition comprising

• (a) at least one polyorganosiloxane, fluorinated polyorganosiloxane, or combination thereof that is hydroxyl-endblocked;
• (b) at least one polyorganosiloxane, fluorinated polyorganosiloxane, or combination thereof comprising at least three hydrosilyl moieties;
• and
• (c) a catalyst composition comprising at least one N-heterocyclic carbine;
• wherein the composition is an organometallic catalyst-free composition.

A curable composition comprising

• (a) at least one polyorganosiloxane, fluorinated polyorganosiloxane, or combination thereof comprising reactive silane functionality comprising at least two hydroxysilyl moieties;
• (b) at least one polyorganosiloxane, fluorinated polyorganosiloxane, or combination thereof comprising reactive silane functionality comprising at least two hydrosilyl moieties;
• and
• (c) a catalyst composition comprising at least one carbene precursor;
• wherein at least one of said components (a) and (b) has an average reactive silane functionality of at least three.