Waterproof Heat Shrink Solder Seal Butt Connectors – Tinned Copper, 100/200pcs AWG26-10 for Marine & Auto Wire Splice

Get professional, waterproof splices in one easy step. Our heat shrink butt connectors have a built-in solder ring and hot melt adhesive. Just insert wires, apply heat (heat gun), and the connector shrinks, solders, and seals – instantly.

Why you’ll love them:

100% Waterproof – Hot melt adhesive inside blocks moisture, perfect for marine, auto, and outdoor use.

High pullout strength – Polyolefin tubing and soldered core give you strain relief and vibration resistance.

⚡ One-step connection – Solder, insulate, and seal without crimping or taping.

Tinned copper terminals – Corrosion‑resistant for long‑lasting performance.

Color‑coded size guide (AWG / mm²):

White: 26‑24 / 0.25‑0.34

Red: 18‑22 / 0.5‑1.0

Green: 18‑16 / 0.75‑1.5

Blue: 16‑14 / 1.0‑2.5

Yellow: 12‑10 / 4.0‑6.0

Choose your kit (Red + another color):

• Set 1: Red 100 + Blue 100
• Set 2: Red 100 + Yellow 100
• Set 3: Red 100 + White 100
• Set 4: Red 100 + Green 100
• Set 5: Red 200 + Blue 200
• Set 6: Red 200 + Yellow 200
• Set 7: Red 200 + White 200
• Set 8: Red 200 + Green 200

Upgrade your wiring today – fast, reliable, and truly waterproof. Add to cart now!