The origin of this review report was an FSA project on food contact silicone based materials that was carried out at Rapra from 2003 until 2005. The objective of this project was to provide detailed information on the types and composition of silicone based products that are used in contact with food and to identify the extent to which the migration of specific constituents into food could occur. In addition to giving a summary of the findings of this extensive FSA project, this review report also provides an extensive overview of the principal types of silicone products that are used in food contact situations, from a description of their manufacture and chemical composition, to a detailed review of the potential migrants and their migration behaviour. It also covers the relevant national and EU food contact legislation and describes recent, food related, technological developments.