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Heat Seal Connector Kits

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Working with wires can be a painstaking task, but you can quickly and efficiently mate, connect, or terminate when you have the appropriate supplies on hand. That's where Master Appliance can help. We offer a vast selection of heat-seal electrical connector kits, so you can confidently choose the best solution for your next wire connecting project. Each of our signature assortment kits comes with all the accessories you need to crimp and heat seal quickly. With crimp and solder capability, our wire connectors provide an extra secure connection while simultaneously resisting corrosion and other environmental contaminants. Our high-quality heat-seal connector kits are designed to resolve many of the problems our customers face. Find the correct size connectors or the perfect kit today.

Master's heat shrink tubing is made of translucent polyolefin and lined with adhesive, allowing for easier visual inspection and preventing wire corrosion. The heat shrink tubes are also designed not to reduce in length, creating better insulation along with superior wire support and strain relief. We are committed to delivering professional-quality butt splice connectors with less voltage drop and a better current flow. We supply Multiseal, Proseal, and Solderseal butt splice connectors in different gauge sizes, ranging from 20 to 10 AWG. Each splice connector is crimped for mechanical reliability, soldered for strength and conductivity, and heat-sealed for superior durability. We also provide heat-seal connectors with varying grades of tensile strength, ranging from 89 to 103 pounds.

If you're looking for the finest crimp and heat-seal connector kits on the market, you have come to the right place. All Multiseal, Proseal, and Solderseal kits come equipped with seamless wire connectors, brazed seam rings, and spades, which prevent opening of the connector barrel for a stronger crimp. All tubing is color-coded with wire gauge imprint, so you can easily identify the correct connector for the job. Select heat-seal kits are available in standard assortment packs and butt splice minipacks. Find the best heat shrink connector to seal your electrical systems or make permanent repairs by shopping from our selection. If you have any questions, please contact us today to learn more.

A Master heat shrink connector seals your electrical systems, seals your connections, and makes permanent repairs. 

They resist:

  • Water and condensation
  • Salt and other contaminants
  • Wire pull-out and current leakage
The heavy duty trucking, marine and recreational vehicle, plant maintenance department, OEM and automotive aftermarket, heavy duty equipment, oil fields and mining, municipalities and military bases, among many other uses for heat sealing equipment.  Contact Master for three different types of professional quality aftermarket heat seal connector kits and refills.  All installable using
Master Heat Tools.
Master Multiseal™ Heat Seal Connectors

With the application of heat, Master Crimp, Solder and Heat Seal connectors are crimped for mechanical reliability, soldered for strength and conductivity, and heat sealed for superior durability.

To install:

  1. Strip and slide the wires into the connector.
  2. Crimp the wire strands and connector and apply heat to the connector until the solder flows, the adhesive flows, and the tubing recovers. 
  3. Allow the connector to cool.
They are available in standard assortment packs and butt splice minipacks.  When there is no margin for error, choose Master Multiseal Heat Seal Connectors.
Master Solderseal™ Heat Seal Connectors

With the application of heat, Master Solder and Heat Seal connectors create high quality, heat sealed solder connections that take the guess work out of soldering and sealing water tight connections.

To install:

  1. Strip and slide the intermingled wires into the connector.
  2. Apply heat to the connector until the solder flows, the adhesive flows, and the tubing recovers.
  3. Allow the connector to cool.
They are available in standard assortment packs and minipacks.  Choose Master Solder and Heat Seal connectors when you want strength and superior conductivity.
Master Proseal™ Heat Seal Connectors

With the application of heat, Master Proseal connectors are the finest Crimp and Seal connectors on the market today.  They give you better wire contact, less voltage drop, and better current flow.

To install:

  1. Just strip and slide the intermingled wires into the crimp barrel of the connector.
  2. Crimp the connector.
  3. Apply heat to the connector until the adhesive flows and the tubing recovers.
They are available in standard assortment packs and butt splice minipacks. Choose Proseal Heat Seal Connectors for mechanical reliability, durable insulation, and a watertight connection.