Waterproof Solder Wire Connectors - Westello

Waterproof Solder Wire Connectors


Regular price $47.99 $23.99 Save $24.00

Excellent Anti-Corrosion, Superior Insulation, Waterproof and High Sealing Performance

CONNECT SOLDER wires and SEAL with ease. With a dual-walled design, these connectors provide waterproof and high tensile strength provided by heat shrink tubing. Perfect for marine, automobile and other wiring applications.


  • Waterproof & Seal Performance - Designed with two hot melt waterproof adhesive rings in each butt connector which provides a durable hold and prevents moisture.
  • Fit for Confined and Narrow Spaces - Can be bent after connection and no need to crimp or solder in the confined area, just control the temperature via a heat gun.
  • Easy to identification - Four (4) different color coded tubing with wire gauge imprint providing easy identification.
  • Easy to Use - Connect wires without any technical background.
Ideal for use on boats, autos, outdoor equipment, homes and more other electronic jobs.

How To Use

1.  Strip the two wires that going to connect and select the right size of connector.
2.  Thread the connector to one of the wires and then twist the two conductors together.
3.  Move the connector to the middle of the conductor.
4.  Apply heat to the connector slowly and evenly with a hot air gun with nozzle until it melts to the wire.



  1. Some of our customers can use a lighter to finish the joint, but we recommend using a heat gun with nozzle to heat shrink the connector.
  2. Please rotate the wire when you are heating or surround the wire to heat so that the tube was heated evenly.
  3. 3-5cm (1.18-1.96") is the suitable distance we recommend from the nozzle to the connectors.



  • Material: Tinned Copper
  • Red connector: Suit Cable / Wire Size 22-16 AWG 0.5-1.5mm2  
  • Blue connector: Suit Cable / Wire Size 16-12 AWG 1.5-2.5mm2  
  • Yellow connector: Suit Cable / Wire Size 12-10 AWG 4.0mm2 
  • White connector: Suit Cable / Wire Size 26-24 AWG 0.25-0.34mm2

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Flat Worldwide Shipping Rate $5.99 USD.

Got Questions?

We're happy to help! Email us at hello@westello.com.