Polydimethylsiloxane (PDMS) belongs to a group of polymeric organosilicon compounds that are commonly referred to as silicones. PDMS is the most widely used silicon-based organic polymer, and is particularly known for its unusual rheological (or flow) properties. Its applications range from contact lenses and medical devices to elastomers; it is present, also, in shampoos (as dimethicone makes hair shiny and slippery), caulking, lubricating oils, and heat-resistant tiles.
 
PDMS is optically clear, and, in general, is considered to be inert, non-toxic and non-flammable. It is
occasionally called dimethicone and is one of several types of silicone oil (polymerized siloxane)....