Jotun saw an enormous increase in the size of the whaling fleet at the turn of the century and realized the potential in producing the marine coating he was selling himself, Gleditsch purchased an oil mill that was struggling and set about turning it into a paint manufacturing plant. In 1931 Jotun purchased Arcanol, a paint company that were producing a red lead based paint that offered extremely good rust-inhibiting properties, this paint coating proved to be the first real success for Jotun in the rapidly growing marine protective coatings industry. Jotun soon formulated an antifouling which meant that boats and ships were able to spend longer at sea before the necessity for cleaning in dry dock, this was typically up to four years.
International shipping and fishing companies soon reconized the financial benefits provided by Jotun antifoulings. In 2000 Jotun formulated a tin free sacrificial antifouling SeaQuantum the most advanced TBT- free ablative self-polishing antifouling. In 2003 Jotul launched Jotacote Universal, a universal epoxy coating formulated for the use on vessels in the new build marine industry offering greater throughput and efficiency.
Today the range of Jotun marine epoxies and polyurethane topcoats extends to Jotamastic, Pioner, Ultra and Hardtop. Their commercial antifouling consists of Seaforce 30, 60 and 90 as well as SeaQuantum Classic and SeaQuantum Ultra. For the leisure industry Jotun have formulated a range of antifouling for use on small crafts, boats and yachts that are ideal for cruising and sailing. These coatings are both easy to apply and economical and are sold under the brands Jotun Mare Nostrum Antifouling, NonStop Antifouling and Jotun Racing Antifouling.