Waterproof, Corrosion-Resistant Seal
The moisture-resistant seal protects connections against corrosion and short circuits, making these connectors suitable for marine, automotive, and outdoor wiring.
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Why customers love it
Waterproof Connections, No Soldering Iron Needed
These solder seal wire connectors join and insulate electrical wires in one heat-and-seal step, creating waterproof, corrosion-resistant connections for automotive, marine, RV, and household wiring.
- Pre-installed solder and heat-shrink tubing form a strong, permanent bond when heated
- Waterproof, moisture-resistant seal protects against corrosion and short circuits
- Fits wires from 0.25 to 6 mm2 (approx. 22 to 10 AWG)
- Clear heat-shrink sleeve lets you visually inspect the solder joint
- No soldering iron, crimper, or electrical tape required—just heat and seal
Why These Connectors Earn Their Place in Your Kit
Heat-and-Seal Simplicity
Pre-installed solder and heat-shrink tubing create a strong, permanent bond when heated—no soldering iron, crimper, or additional tape needed.
Visible Solder Joint
The clear heat-shrink sleeve lets you inspect the solder joint after heating, so you can confirm the connection at a glance.
CE and RoHS Certified
These connectors are CE and RoHS certified for safe, compliant use in your electrical projects.
Setup
How to Make a Connection
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Insert the Wires
Strip the wire ends and insert them into the connector so the pre-installed solder ring sits between the conductors.
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Apply Heat
Heat the connector until the solder flows and the heat-shrink tubing shrinks around the wires, forming a permanent bond.
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Inspect the Joint
Check the clear heat-shrink sleeve to visually confirm the solder joint is complete and the seal is formed.
Specs
The details that matter
- Type
- Solder Seal Wire Connectors
- Includes
- Heat shrink butt splice terminals
- Size
- 0.25–6 mm2 (approx. 22 to 10 AWG)
- Certification
- CE and RoHS
- Box Options
- 100Pcs Box, 200Pcs Box, 300Pcs Box, 500Pcs Box
More details
These solder seal wire connectors provide a fast, reliable way to join and insulate electrical wires, creating waterproof, corrosion-resistant connections without the need for crimping tools or electrical tape. Perfect for automotive, marine, RV, and household wiring projects.
- Pre-installed solder and heat-shrink tubing create a strong, permanent bond when heated
- Waterproof and moisture-resistant seal protects against corrosion and short circuits
- Wide range of sizes fits wires from 0.25 to 6 mm2 (approx. 22 to 10 AWG)
- Clear heat-shrink sleeve allows visual inspection of the solder joint
- No need for soldering irons, crimpers, or additional tape—just heat and seal
- CE and RoHS certified for safe, compliant use
Ideal for repairing automotive wiring, boat electronics, outdoor lighting, and any project requiring durable, weatherproof connections.
Frequently asked questions
Everything you might want to know before you order.
How do delivery and returns work?
Shipping
Free standard shipping
To Germany: 1–3 business days processing, then 5–12 business days in transit. Estimates, not guaranteed dates.
Your dispatch email includes a tracking link. Contact us if it has not arrived within 5 business days of ordering.
Outside the EU, import duties and local taxes may be payable on delivery. See the shipping policy for supported destinations and conditions.
Returns
Request a return within 14 days of delivery. Standard eligible returns must meet the policy conditions; a €4 prepaid-label fee is deducted from the refund. Return shipping is free for faulty, damaged or incorrect items. Contact us promptly if something is wrong. Your mandatory consumer rights are unaffected.
Product reviews · Judge.me
Read it from other buyers
H
Recommended product
B
Perfect 10 out of 10
B
I have used it on a couple of connections, i like how the sealant melts and you can see how it works, i look forwards to long term testing underwater
B
Fast shipping. thank you.