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Silastic (a portmanteau of 'silicone' and 'plastic') is a trademark registered in 1948 by Dow Corning Corporation for flexible, inert silicone elastomer.[1]


The Silastic trademark refers to silicone elastomers, silicone tubing and some cross-linked polydimethylsiloxane materials manufactured by Dow Corning,[1] the owner of the global trademark.


Silastic-brand silicone elastomers have a range of applications. In the automotive industry they are used for making gaskets, spark plug boots, hoses and other components that must operate over a broad temperature range and resist oil and coolants. The elastomers are widely used in the architectural, aerospace, electronic, food and beverage, textile, and transportation industries for molding, coating, adhesion and sealing. Due to their inert nature, medical-grade Silastic-brand silicone elastomers are important materials in numerous medical and pharmaceutical devices including catheters, pacemaker leads, tubing, wound dressings silos for abdominal wall defects.[2] and nasolacrimal duct obstruction [3]


  1. ^ a b United States Patent and Trademark Office, U.S. Trademark 71,503,981. Filing date June 15, 1946; registration date April 13, 1948. Owner: Dow Corning Corporation, Midland, Michigan 48686-0994.
  2. ^ Abdominal Wall Defects by Sajani Shah MD, at M&M Conference at SUNY Downstate Medical Center. Feb 24, 2006.
  3. ^ Engel JM, Hichie-Schmidt C, Khammar A, Ostfeld BM, Vyas A, Ticho BH (2007). "Monocanalicular silastic intubation for the initial correction of congenital nasolacrimal duct obstruction". J Aapos 11 (2): 183–186. doi:10.1016/j.jaapos. PMID 17307001. 

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