CHT QLE 1103 Silicone Encapsulant

Description

CHT QLE 1103 is a two-part silicone encapsulant from the QLE optically clear line, built for potting work where inspectors or technicians need to see the components after the pour cures. The addition cure system fills cavities around wires, terminals, and small parts without the amber tint that some potting chemistries pick up over time.

Where this encapsulant is used

QLE 1103 fits LED modules, sensor housings, and any assembly where a clear fill lets a technician verify lead position or check for trapped air after the pour sets. As part of the broader QLE 1100 series, it shares the family’s addition cure chemistry, which avoids the byproduct off gassing that can fog a clear pour or leave surface tack. Clarity also makes rework easier to judge, since a technician can see exactly where a bubble or void sits before deciding whether to cut back in.

How this encapsulant handles production work

Stage the housing, leads, and dispensing equipment before opening material, then fill slowly so air can escape around corners and terminals rather than getting trapped under the clear surface. Document mix ratio, fill depth, and cure schedule on the first qualified build, and confirm the specific QLE 1103 grade against the engineering drawing before a production run, since the QLE family covers more than one clarity and hardness combination. Addition cure systems like this one are sensitive to certain cure inhibitors, so keep sulfur-cure rubbers, tin catalysts, and some gloves away from the mix area.

Specifications

Order QLE 1103 in the kit size that matches your pour volume, and confirm cure schedule and clarity grade against the current technical file before production. Browse related silicone potting compounds for adjacent silicone systems. For manufacturer background, visit CHT Group.

Need Help?

Need help confirming the clarity grade for your assembly? Call (800) 220-1966 or email [email protected].