Luminar marine is a leading sterntube seal equipment manufacturer and professional service supplier of high quality spare parts that has been type approved by major classification societies.Through years of research and development, we have developed a novel technology that imparts hardness and abrasion  resistant properties to our seal ring material (composite structure) by adding a election of nano materials.

All our sterntube seal rings are very high endurance and imparts longer life, almost 2~3 times that of conventional seal rings.