CHT QGel 311UV Fast-Cure Silicone Gel

Description

CHT QGel 311UV is a transparent silicone encapsulant with a UV tracer for electronic assemblies that need soft protection and easier inspection. The gel mixes one to one, cures quickly, and remains flexible after cure so it can cushion components through vibration, thermal movement, and handling without the stress of a rigid potting block.

Where This Encapsulant Is Used

QGel 311UV fits potted electronics where inspection matters before the assembly leaves the bench. The UV tracer helps operators confirm coverage under suitable inspection lighting, especially around wire exits, connector corners, standoffs, and component shadows where clear materials can be hard to see. It is useful for control modules, LED drivers, sensors, low-voltage electronics, and test assemblies that need a soft moisture barrier with a visible quality check.

Published CHT gel-series data identify QGel 311UV as a fast-cure, inhibition-resistant gel with 1:1 mix ratio and transparent to UV-blue appearance. The same series is built to protect components from moisture, vibration, thermal shock, and mechanical shock. Use it when the material approval calls for the UV-traceable 311UV grade rather than a standard clear gel.

Encapsulant Process Notes

Meter equal parts into a static mixer or weigh equal amounts for hand mixing. Dispense from the low side of the cavity and let the gel flow around components before adding more. Fast cure helps line speed, but it also means the work cell should be ready before mixing begins. Prepare fixtures, masks, and inspection lighting first, then fill parts in a controlled sequence.

Keep wet material away from contamination that can interfere with addition-cure silicones. Confirm cure profile, fill depth, and UV inspection method on the actual assembly before regular production. Browse related casting and potting compounds for adjacent silicone materials. For broader silicone material information, visit CHT.

Need Help?

Need help matching UV inspection lighting to your gel fill process? Call (800) 220-1966 or email [email protected].