Review on UbiGear Wire Connector Solder Seal Heat Shrink Electrical Butt Connectors Terminals Insulated Marine Waterproof Automotive Copper Splice (12-10 AWG (50 Pcs)) by Marcel Robinson

I use these heatshrink tubing for soldering anything that has even the slightest chance of coming into contact with the elements. I've used them in making auto wire harnesses (which run along the underbody of a car - direct exposure to inclement weather, road grime, and car washes), outdoor extension cord repairs, and other electrical projects (I've even used them around the controls of a heated one). to repair massage chairs). I have used various sizes of heat shrink tubing for soldering and all I have to say is that once you start using them it will be very difficult to go back to other means of joining and sealing wire joints.