Two component, paste consistency, addition cured medical grade silicone for bonding and sealing

Key Features

  • Meets ISO 10993-5 for cytotoxicity
  • Self priming feature
  • Serviceable from -65°F to +400°F
  • Exceptionally high tensile lap shear strength

Product Description

Master Bond MasterSil 153Med Black is a two component silicone compound with a paste consistency for high performance bonding and sealing. It passes ISO 10993-5 for cytotoxicity and can be used in medical device applications. MasterSil 153Med Black is an addition cured system and does not require exposure to air for cross-linking. It has a convenient one to one mix ratio by weight, and will not outgas while curing. It is 100% solids and contains no solvents. MasterSil 153Med Black exhibits typical silicone flexibility and high temperature resistance. MasterSil 153Med Black has an exceptionally long working life and very low exotherm. It bonds well to a wide variety of substrates including most metals, many plastics, glass and ceramic. Most importantly, it will bond well to cured silicone rubber. It has superb electrical insulation properties. Its remarkable flexibility allows it to withstand severe thermal cycling and resist vibration and shock. It has a self priming feature that enhances the bonding properties of the system. Also, it is very water resistant. MasterSil 153Med Black is translucent and is serviceable over the broad temperature range of -65°F to +400°F. It is widely used in medical device applications where high flexibility and splendid temperature resistance are required.

Product Advantages

  • Addition cured, no by-products released during cure, does not require air for curing
  • Low exotherm, very long pot life
  • Bonds well to many substrates, including silicone rubber
  • Exceptionally high tensile lap shear strength
  • Meets ISO 10993-5 specifications

Industrial Certifications

ISO 10993-5 for Cytotoxicity

Meets EU Directive 2015/863



Double Barrel Cartridge

Gun Applicator


MasterSil 153Med Black is available is various sizes and units to accommodate customer's needs.

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