The corrosion under insulation is an issue that devastate all offshore exploration companies. This situation involves huge losts to process assurence, men hour increase and waste of equipments and materials, leading it to significant costs to Oil and Gas industry.Despite recurrent problems, the industry still uses same insulations for the past decades, while new and unknow tecnologies promisses to attack and mitigate CUI occurrence. Through research and thecnical analyses of current and new isulations, it is able to establish a quatitative and quality comparative relation between thesee insulations options to guide smartests choices, also report benefits of the new coming insulations. This document, in addition, guides how to avoid regular corrosion cases in equipments and extent lifetime of equipment with termal insulation installed. The results aim to simple conclusions regarding the attack of corrosion under insualtion issue and the way insulation choice affects the CUI appearence. Also importante, the study expose, through clear grafics and ilustrations the pros and cons of each insulation that can be applied to offshore operations. This paper will help students, engineers e professionals to understand better the relevant facts to pipes and equipments wear that requires the use of thermal insulation, also how to solve corrosion, material wear and high operation cost problems through analitical and logic thinking. Allied to that idea, this study hopes to contribute to academic community in the way to estimulate the research on industrial thermal insulation and its applications to the Oil and Gas exploration industry.