We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Clear heat-shrink tubes with coloured rings, 50 pieces in a bag

Sopoby207 Solder Seal Wire Cap Connectors 50pcs (23Red 12Blue 10White 5Yellow)

SKU CH-C5X1-6JK49 MPN Sopoby207

A 50-piece assortment of solder-seal heat-shrink butt connectors with UL-listed, dual-wall polyolefin tubing and hot-melt adhesive that shrinks at 80 °C and melts solder at 111 °C to create

  • ColorBlack
  • Standards/CertificationsUL Listed
  • Waterproof seal created by dual-walled tubing with hot melt adhesive
  • Strong vibration-resistant joints from 2:1 shrink ratio polyolefin sleeve
  • Reliable conductivity via tin-plated barrel reducing voltage drop
  • UL Listed safety assurance for marine and automotive wiring
  • 50-piece kit colour-coded 23 red 12 blue 10 white 5 yellow

50-piece solder-seal assortment

This kit contains fifty heat-shrink butt connectors with internal solder rings. The colour-coded mix provides 23 red, 12 blue, 10 white and 5 yellow terminals for different wire gauges. UL-listed construction suits automotive, marine and general electrical repairs. Professional installers and DIY users gain a waterproof, insulated joint in a single heating step.

Capacity and headroom

Fifty pieces cover multiple wiring jobs on motorcycles, RVs, boats and holiday lighting. The dual-wall tubing shrinks at 80?, solder begins melting at 111? and flows fully at 138?, creating a sealed connection resistant to vibration and abrasion. A 1500 W heat gun set between 400? and 600? (752-1112°F) is recommended. Very large-gauge cables or high-volume production runs will exceed the assortment quantity.

Colour-coded tubing and UL listing

Each connector’s polyolefin sleeve carries a distinct colour so the installer can match the terminal to the wire size without guesswork. The hot-melt adhesive liner bonds to insulation, blocking moisture ingress and adding pull-out strength. UL listing confirms the materials meet recognised safety standards for electrical splicing. No separate solder, flux or heat-shrink tubing is required.

Highlights

  • Waterproof seal created by dual-walled tubing with hot melt adhesive
  • Strong vibration-resistant joints from 2:1 shrink ratio polyolefin sleeve
  • Reliable conductivity via tin-plated barrel reducing voltage drop
  • UL Listed safety assurance for marine and automotive wiring
  • 50-piece kit colour-coded 23 red 12 blue 10 white 5 yellow

Specifications

ColorBlack
Standards/CertificationsUL Listed

Questions about this item

Will the 23 red, 12 blue, 10 white and 5 yellow connectors fit the same wire gauges I already use?

Each colour corresponds to a specific wire-gauge range; match the colour on your existing wires to the same colour in this 50-piece assortment.

How do I know the solder ring has melted completely and the adhesive has sealed?

Apply heat until the tubing shrinks at 80?, the solder ring starts melting at 111? and finishes at 138?; the adhesive will flow and the tube becomes transparent when the seal is complete.

Does the pack include a heat gun or any tools?

Only the 50 solder-seal connectors are supplied; a 1500 W hot-air gun set to 400–600? (752–1112 °F) must be purchased separately.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.