Master Bond MasterSil 153AO

Key Features

  • Paste consistency
  • Long open time
  • High temperature resistant
  • Remarkable adhesive properties

Master Bond MasterSil 153AO is a two-component silicone for high-performance bonding and sealing. With a forgiving 1 to 1 mix ratio by weight, it has a paste consistency and minimal flow while curing. It generates very little heat after mixing and has an exceptionally long working life. MasterSil 153AO cures at ambient temperature or more rapidly at elevated temperatures. The optimum cure is overnight at room temperature followed by 2-4 hours at 135°F to 185°F. Also, it contains no solvents or diluents and has very low shrinkage upon curing.

This silicone adhesive bonds well to a wide variety of substrates such as metals, glass, ceramics and many plastics. Moreover, it bonds tenaciously to silicone rubber. Other outstanding features include high-temperature resistance, silicone-type flexibility, and exceptionally strong bonding properties. As an addition-cured system, it does not require exposure to air for complete cross-linking.

This system is top-notch for withstanding thermal cycling and shock. Minimal stress is generated when bonding dissimilar substrates. It is white in color, with a service temperature range spanning between -65°F to +400°F. MasterSil 153AO is a great choice for applications involving sensitive optical and electronic components where heat dissipation along with electrical insulation is critical.

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