Description
QGel 342 is a clear, very soft, tough silicone gel encapsulant from CHT Group, cross-linked to hold its shape under repeated flexing rather than tearing or splitting like a softer fill. It gives an assembly a cushioned layer that survives years of vibration and thermal cycling in the field, which matters most on parts that get handled again after the initial potting is done.
Where This Encapsulant Is Used
Power modules, LED drivers, and connector assemblies use QGel 342 where a potted fill needs to flex with the housing instead of cracking at the edges during thermal expansion and contraction. The added toughness compared to a standard soft gel matters on parts that see repeated handling, transport vibration, or field servicing where a technician may probe or partially disturb the potted area. Outdoor and off-road electronics benefit from the moisture and dust barrier the cured gel forms around sensitive components, and the tear resistance keeps that barrier intact even after a connector is unplugged and reseated several times over the life of the equipment.
Handling This Encapsulant Without Dispensing Gear
QGel 342 mixes one part to one part by weight and does not require metering or automated dispensing equipment, which makes it practical for smaller batches, prototypes, and field repair kits. Pour or spread the mixed gel into the cavity and let it self-level where the geometry allows. The soft, resilient cure stays workable rather than glass-hard, so trimming excess material after cure is straightforward with a sharp blade. A kitchen or lab scale is enough to hold the one-to-one ratio accurate across small pours, and a disposable cup makes for easy cleanup between batches.
| Specification | Value |
|---|---|
| SKU | QUA QGEL 342 |
| Manufacturer | CHT Group |
| Chemistry | Moderately cross-linked silicone gel, tough grade |
| Appearance | Clear |
| Mix Ratio | 1:1 by weight |
| Dispensing Equipment | Not required |
Because no metering equipment is involved, QGel 342 travels well to a field service van or a satellite repair bench where a full dispensing setup is not practical. Keep both parts at room temperature before mixing so the ratio holds true and the pour behaves the same way it did in the last batch. Order QGel 342 through Chemical Concepts casting and potting compounds along with related silicone potting systems, or review CHT Group’s complete gel line at CHT.
Need Help?
Need help sizing a kit for your potting cavity? Call (800) 220-1966 or email [email protected].
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