Component Management

Curing system only requires air for cross-linking

3rd June 2014
Staff Reporter
0

MasterSil 152, a two component condensation curing system from Master Bond, has been developed for potting and encapsulation applications where an addition cured silicone cannot be used. Only requiring air for complete cross-linking, the curing system has no ubstrates that will inhibit the cure. 

This system fully cures at room temperature in 24-48 hours and has low exotherm. MasterSil 152 features low shrinkage upon curing. It has a ten to one mix ratio by weight and delivers a long working life of 6-8 hours after mixing.

MasterSil 152 combines low viscosity and electrical insulation properties with the ability to cure in sections exceeding one inch in thickness, making it well suited for potting and encapsulation. Widely used in electronic and optical components, it is optically clear and can transmit light well from 220-2,500 microns. It has an index of refraction of 1.45.

As is typical for silicones, MasterSil 152 is also highly flexible and can withstand thermal cycling and shock. It is highly resistant to water and is serviceable over the broad temperature range of -65°F to +400°F. This potting and encapsulation compound has a 6 month shelf life at room temperature in its original, unopened containers. It is available in ½ pint, pint, quart, gallon and 5 gallon container kits.

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