Adhesives and sealants have a long history in shipbuilding and marine industries, providing protection against water, chemicals, weather, and environmental degradation. In the earliest days of seafaring, natural sealants such as pine resins were cooked down and applied liberally, requiring regular re-treatments. 

A team of 16 undergraduate and graduate engineering students from the École de Technologie Supérieure (ÉTS) in Montréal, Canada, recently finished building Rafale II, an all-composite C-Class racing hydrofoil catamaran. It features redesigned carbon fiber epoxy prepreg hulls and cross beams, which are stiffer and 25% lighter while providing 15% more displacement volume.

The Naval Undersea Warfare Center (NUWC) Division Newport has recently entered into an agreement with ALFA International Inc. for the commercialization of a high-performance polyurethane.

SG230HV is a methacrylate adhesive system that reportedly holds both Lloyd's Register and American Bureau of Shipping (ABS) certifications.

The composites industry is full of interesting technologies and products. In the world of composites, diversity can be seen at every turn.