Used as a base polymer in silicone elastomers and sealants due to its flexibility and thermal stability. Common in medical devices such as catheters and wound dressings because of its biocompatibility and low toxicity. Acts as a surfactant or leveling agent in coatings and paints, improving surface smoothness and reducing defects. Employed in personal care products like lotions and cosmetics for its emollient properties and water-repellent film formation. Frequently used in microfluidic device fabrication (e.g., PDMS chips) via soft lithography, owing to its optical clarity and ease of molding. Also serves as a defoaming agent in industrial processes and as a matrix material in sensors and encapsulation applications.