CHT Group QGel 343 Tough Two Part Silicone Potting Gel

Description

QGel 343 is a tougher two part silicone gel for potting and encapsulation, with a translucent cured finish and a one to one mix by weight. Both parts pour as flowable liquids, then turn thixotropic once mixed so the blend stays where it is placed before it cures.

Where QGel 343 Is Used

This grade protects circuit boards, connectors, and modules from vibration, thermal cycling, and mechanical shock, and it seals out moisture in the field. The thixotropic behavior after mixing helps the gel hold on vertical faces and around tall components instead of running off, which makes it a good match for connectors and uneven assemblies in transportation, construction, and special effects work. The slightly firmer cured body resists slump on parts handled soon after potting, and it still flexes enough to take thermal movement without cracking at the edges.

How QGel 343 Cures and Performs

The two flowable parts blend at a one to one ratio and cure by addition with very low shrinkage. A working time near twenty minutes gives enough room to pour and place larger or more complex parts before the gel firms up. The cured material stays slightly harder than a soft cushioning gel while keeping the shock damping that silicone gels are known for. A short vacuum degas before pouring clears entrapped air so the finished pot sets clear and void free around dense component layouts.

Specifications

Pick the packaging size for your pour, and review our encapsulants and potting compounds for softer or faster grades in the same family. For background on the silicone gel range, see CHT Group.

Need Help?

Need help choosing between a soft and a tough potting gel for your assembly? Call (800) 220-1966 or email [email protected].