Nuclear duct-tape

When normal duct-tape won't cut it, you need nuclear duct-tape, whose "slate blue color makes it ideal for use in nuclear tape facilities and it is certified for low leachable halogens and sulfur. It also provides sunlight and UV resistance for up to one year without the backing deteriorating or delaminating. This product is especially ideal for applications in the shipbuilding, nuclear power plant and stainless steel industries."

3M Performance Plus 8979N Nuclear Grade 48-Millimeter-by-54.8-Meter Duct Tape, Slate Blue (via OhGizmo!)