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

Key Features

  • Passes USP Class VI testing
  • Meets ISO 10993-5 specifications
  • Self priming feature
  • Serviceable from -65°F to +400°F
  • Paste consistency
  • Exceptionally high tensile lap shear strength

Product Description

Master Bond MasterSil 153Med is a two component silicone compound with a paste consistency for high performance bonding and sealing. Most significantly it can be used for medical device applications as it meets USP Class VI testing and ISO 10993-5 for cytotoxicity. MasterSil 153Med 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 exhibits typical silicone flexibility and high temperature resistance. MasterSil 153Med 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 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. Very low shrinkage upon cure
  • Readily cures at ambient temperatures or faster cure at elevated temperatures
  • Bonds well to a variety of substrates including silicone rubber. Self priming feature
  • Superior electrical insulation properties; highly resistant to water
  • Outstanding flexibility combined with high temperature resistance
  • Meets USP Class VI and ISO 10993-5 specifications

Industrial Certifications

USP Class VI Medical

ISO 10993-5 for Cytotoxicity

Meets EU Directive 2015/863




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

Visual Media

MasterSil 153 & MasterSil 153Med Silicone Compounds Video

MasterSil 153Med meets USP Class VI and ISO 10993-5 specifications for biocompatibility and cytoxicity.
It is a two part silicone with a paste consistency that features a convenient one to one mix ratio by weight, and does not require exposure to air and humidity for cross-linking.

Master Bond has just the solution for you! MasterSil 153Med is a two part, medical grade silicone featuring outstanding performance properties for the assembly of medical devices.

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