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A clear plastic box holding 120 black heat-shrink butt splice connectors with printed gauge markings

Haisstronica 120PCS Solder Seal Wire Cap Connectors Black

SKU CH-WQT7-MA02K

A 120-piece set of black solder-seal butt connectors with heat-shrink tubing and hot-melt adhesive for waterproof, corrosion-resistant wire splices

  • ColorBlack
  • Weatherproof seal from hot melt adhesive that bonds in seconds
  • Marine grade construction with sufficient solder flow for durable connections
  • Harsh environment protection against abrasion cutting and impact
  • Wire gauge markings on tubing for quick connector selection
  • 120 piece assortment covers multiple repair jobs

120-piece solder-seal wire cap kit

This 120-piece kit supplies solder-seal wire cap connectors in black for automotive, marine and general electrical work. The connectors combine a solder ring with heat-shrink tubing to create a moisture-resistant joint in a single heating step. They are aimed at installers who need a weatherproof splice without separate crimping and taping operations.

Heat-shrink installation with gauge-marked tubing

Each connector is marked with its wire gauge on the polyolefin tubing for quick identification. Applying heat melts the solder and activates the hot-melt adhesive, forming a sealed joint in seconds. The main difficulty is applying even heat so the solder flows completely and the adhesive bonds without overheating the insulation.

Handles multiple gauges in one assortment

The assortment covers a range of wire gauges for typical stereo, lighting and accessory circuits. It provides enough pieces for several complete vehicle or boat rewires. Very large-gauge power cables or high-vibration harnesses that require mechanical crimp lugs fall outside the range of this kit.

Highlights

  • Weatherproof seal from hot melt adhesive that bonds in seconds
  • Marine grade construction with sufficient solder flow for durable connections
  • Harsh environment protection against abrasion cutting and impact
  • Wire gauge markings on tubing for quick connector selection
  • 120 piece assortment covers multiple repair jobs

Specifications

ColorBlack

Questions about this item

How can I confirm the solder seal has formed a proper waterproof joint after heating?

The adhesive cools and hardens within seconds, reaching full bond strength; a uniform shrink tube with visible solder flow around the wire indicates a complete seal.

What is included in the 120-piece pack and what tools must I supply?

The pack contains 120 black solder-seal butt connectors marked with wire gauges; a heat gun or similar heating tool is required and not included.

Which pack size should I choose for a typical automotive wiring job?

The 120-piece assortment covers multiple gauge sizes for most vehicle repairs; larger 200, 220, 380, 620, 1000 or 2500-piece kits are available for higher-volume work.

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