Waterproof Solder Wire Connectors

Seal It Once, Trust It Forever

Loose wire connections fail at the worst moments. SealPro Waterproof Solder Wire Connectors eliminate that risk with a built-in solder ring and hot-melt adhesive lining that bonds, seals, and insulates in one simple step. Just insert, apply heat, and you're done — with a connection that resists moisture, vibration, and corrosion for the long haul.

Trusted for automotive, marine, home repair, electronics, and professional wiring applications.

Key Features

• Built-In Solder Ring — melts at 232°F–244°F to bond wires firmly without soldering tools
• Waterproof Heat-Shrink Seal — hot-melt adhesive creates an airtight, corrosion-resistant barrier
• Color-Coded Sizes — instantly identify the right connector for your wire gauge
• Durable Polyethylene Construction — resists moisture, wear, and vibration
• Wide Temperature Range — rated -67°F to 221°F for demanding environments

Wire Size Compatibility

• White: 26–24 AWG (0.25–0.34 mm²)
• Red: 22–18 AWG (0.5–1.0 mm²)
• Blue: 16–14 AWG (1.5–2.5 mm²)
• Yellow: 12–10 AWG (4.0–6.0 mm²)

Temperature & Performance

• Working Temperature: -67°F to 221°F
• Shrink Activation: 140°F
• Solder Melting: 232°F–244°F

What's in the Box

• 90 Red Connectors
• 50 Blue Connectors
• 20 Yellow Connectors
• 40 White Connectors

SealPro Wire Connectors — the professional-grade solution for fast, reliable, waterproof wire joints.