Speciality Welds developed solutions to the long-standing problems associated with underwater wet welding and in particular the skills required to produce high quality welds. The new system, which has been named Hammerhead answers the problems to obtaining high quality wet welds in nil visibility, without the need for experienced, trained and/or qualified welder-divers.

The electrode used is a specially formulated Cr-Ni-Mo (stainless steel) electrode and is available in 3.2 mm (1/8") diameter. Although this electrode has been specifically designed for use with the Hammerhead wet-spot welding system (spot-welding), it may also be used for conventional wet welding of stainless steels and/or high strength carbon steels, as it is highly resistant to hydrogen cracking and offers high strength and high toughness electrode properties.

The Hammerhead wet-spot welding process results in a quick and reliable joining method by means of a spot/plug weld, using a standard DC welding power source.