SAFETY ALERT – Inflatable lifejackets equipped with Hammar Hydrostatic Inflator manufactured before 2006. This Safety Alert was recently distributed to shipping authorities and advertised in the trade press, boating magazines and digital media worldwide. The Hammar Hydrostatic Inflator is attached to the lifejacket with a sealing ring. In 2006, CM Hammar upgraded the sealing ring with new state of the art raw materials, to eliminate potential defects and increase long term durability. A small number of sealing rings manufactured before 2006 have suffered premature material degradation, most likely after being exposed to extreme environmental conditions.