How do you prevent CUI in your industrial system CUI is a major problem, but it can be prevented by proper system design. According to this article, "The major factor in preventing CUI is to keep liquid from intruding into the insulation. Water decreases the effectiveness of the insulation and leads to corrosion of pipe or equipment. Poor conditions caused by wet insulation can be aggravated by weathering, vibration or abuse from people." The discussion in this article will help you identify what type of prevention methods you should use in your system.