New molding materials and technology lead to breakthroughs in terminating and splicing cables for harsh environments. Simplicity is key - simple surface preparation and no primers, even for substrates of polyethylene, polyolefin, polyurethane, and rubber. The new technology provides high moisture and chemical resistance, reliability, cost reductions and faster turn-around. True water blocking for deep sea deployment is achieved, even for on-board ship repairs of flooded cables. Examples of results in naval and marine applications illustrate that the versatility achieved in design engineering and application is extraordinary.