Description
QGel 322 is a clear, very soft silicone gel encapsulant from CHT Group built for assemblies that need gentle cushioning around delicate components without adding stiffness to the finished part. The moderately cross-linked chemistry stays soft and resilient long after cure, and the room-temperature option means a shop without oven capacity can still run the material on a normal schedule.
Where This Encapsulant Is Used
Sensor housings, control modules, and small connector assemblies use QGel 322 to isolate components from vibration and mechanical shock while keeping the potted section light and low-stress on surrounding solder joints. The clear cure allows visual inspection after potting, which helps on assemblies that go through a final quality check before shipping. Because the gel stays soft, it also absorbs the thermal expansion mismatch between dissimilar materials in a housing without cracking at the interface, and it holds up on assemblies that see repeated on-off thermal cycling in service without losing its cushioning properties over time.
Encapsulant Cure Options and Mixing
QGel 322 mixes one part to one part and cures at room temperature over 24 hours, or faster with a heat cure for production runs that need quicker turnaround. No metering or dispensing equipment is required, so a technician can hand mix small batches for prototypes or low-volume assemblies without investing in automated equipment. Pour time is generous enough to fill moderately complex cavities before the mix begins to set, and the room-temperature option is useful for potting components that would not tolerate an oven cycle.
| Specification | Value |
|---|---|
| SKU | QUA QGEL 322 |
| Manufacturer | CHT Group |
| Chemistry | Moderately cross-linked silicone gel |
| Appearance | Clear |
| Mix Ratio | 1:1 |
| Cure Schedule | 24 hours room temperature, or accelerated with heat |
| Dispensing Equipment | Not required |
A full 24-hour room-temperature cure gives the gel time to level and de-gas naturally, which can leave a cleaner surface than a rushed heat cure on parts with fine surface detail. Plan production scheduling around the longer cure window if an oven is not part of the process. QGel 322 is stocked through Chemical Concepts casting and potting compounds with other room-temperature-cure potting systems, and full technical detail is available from CHT.
Need Help?
Need help choosing a room-temperature versus heat cure schedule? Call (800) 220-1966 or email [email protected].
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