1. A smooth flowable infrared radiation curable organopolysiloxane composition having a pot-life of at least two hours comprising by weight, A) 100 parts of a poly(alkenylorganosiloxane), B) 1 to 20 parts of a siloxane hydride, (C) 0.001 to 10.0 parts of an infrared radiation absorbent material, (D) an amount of a platinum group metal catalyst in combination with a platinum group metal catalyst inhibitor, or a latent platinum group metal catalyst which is sufficient to effect a hydrosilylation reaction between (A) and (B), and (E) at least a major amount of a zeolite.