Polymeric compositions, products and articles having low friction and low wear, and in particular polymeric products, articles and composites including poly(tetramethyl-p-silphenylenesiloxane). Methods of making the polymeric compositions, products, and articles are also disclosed.

A system and method/apparatus is provided which includes a fluid mix that when mixed together, creates a blend that matches a refractive index of a transparent material with which the fluid is in contact such as borofloat 33, borosilicate, float glass or fused silica, or transparent polymers, arid to have a kinematic viscosity in a certain range.