Polydimethylsiloxane trimethylsiloxy terminated, is widely used as a surfactant, as a component of defoamers which are used to suppress the formation of foams. It is also used as a critical ingredient in water-repelling coatings. It is used as an active silicone fluid, as a stamp resin in the procedure of soft lithography, in optic telecommunications, in biomedical research, as elasticity of polymer networks, as adhesive materials and in skin-moisturizing lotions. It plays an important role in filler fluid in breast implants and as a sorbent for the analysis of headspace of food.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.