SVTP Tool-Tech | Solder Seal Butt Connectors | The Best Way to Splice
Few things in auto repair can be more frustrating than trying to track down an electrical problem. If you’re dealing with some previously modified wiring it can be even more fun. If this is an issue you’re facing, chances are you’ll be making some splices. Wiring work is simply a fact of life if you spend enough time in the car modding game, and there’s one cardinal rule that must be followed : “Do it once, and do it right.” The last thing you want to have to do is tear back into some custom wiring later on down the road.
To that end, we’ve started using a newer style of butt connector in all of our wire splices. Gone are the days of the broke ass standard crimp style connector, and we’ve even retired the marine style connector with integrated heat-shrink sheathing and waterproof sealant. The best product out there now combines the features of the marine style connector with a little ring of heat activated solder in the center of the connector. The idea being that once the wires are inserted you simply take your heat source of choice to the connector.
That little ring of solder in the center of the connector makes all the difference in the world.
The result is once heat is applied the solder melts into the spliced wires, creating a permanently and professionally spliced joint. But wait, there’s more. The outer sleeve is effectively a marine style butt connector. So as you apply heat a sealant oozes out around the wire and the sleeve shrinks on to create a watertight seal. So how good are these things? I have it on good authority that the use of this style of connector is the approved method by Mercedes Benz for splicing wires on their cars. Take your AMG G-Wagon in for some warranty related wire splicing, and you’re probably going to leave the dealership with some of these. I know after using them on a few projects around the shop here I won’t be going back to the old tech.
I picked my set up on Amazon, but plenty of hardware and marine retailers carry them. If you’re interested, this is the exact outfit I purchased: