Molex Perma-Seal Terminals and Splices provide an environmentally sealed connection for 8AWG to 22AWG wires, protecting joints from moisture, salt, and other contaminants. A heat-shrinkable sleeve with hot-melt adhesive fills voids during heating to form a tight seal against dust and liquid. The crimp-and-heat design ensures insulation and sealing performance while withstanding abrasion and mechanical stress. These Perma-Seal Terminals and Splices are used in applications such as automotive, commercial vehicles, marine systems, and illuminated signs.
Molex Perma-Seal Terminals and Splices
Features
- Abrasion resistant
- Adhesive lining with hot-melt seal
- Broad terminal style options
- Chemical resistant
- Clear insulation for conductor visibility before crimping
- Low shrink temperature of 90°C
- NiAc insulation shrinks 40% faster than nylon or polyolefin
- Thick wall for higher durability than nylon or polyolefin
- Transparent insulation with high clarity
Applications
- Automotive vehicles
- Commercial vehicles
- Fountains, pools, and spas
- Illuminated signs
- Marine equipment
Video
This TTI Tech Specs video for Molex Perma-Seal Terminals and Splices explains that they are environmentally sealed to protect against physical abuse, abrasion, water, salt and other corrosive compounds, and they’re available for wire sizes 8AWG to 22AWG.
See video transcript below
Video Transcript
If you mention “environmental sealing”, most engineers will think of protection against moisture and small particles. But if you really want to abuse a device, then you should try dunking it in brake fluid, spraying it with fuel, or splashing it with battery acid. If your product is still working after that, then we can say its environmentally sealed. Molex Perma-Seal terminals and splices can withstand all that and more, and they’re available for wire sizes 8AWG to 22AWG.
The Perma-Seal family uses a crimp on, heat-shrinkable NiAc insulator with a hot melt adhesive on the inner wall. This third generation NiAc insulator is thicker and shrinks faster than competing insulators, and the adhesive melts and flows as the insulator shrinks around the wire, filling any voids and sealing the connection. The connection is then insulated, protected, and sealed against physical abuse, abrasion, water, salt, and a whole workbench of corrosive chemicals.