Aerogel Academy

The Influence Of Insulation Materials On CUI

Posted by John Williams on March 20, 2019

As facilities engineers and operators know, a Corrosion Under Insulation (CUI) mitigation plan is critical to combating the problems that arise from wet insulation and CUI, such as process instability, reduced outputs, loss of containment, and personnel safety incidents. 

But, it's the designer of industrial insulation systems that creates a system that stands the test of time in CUI defense. That being said, the designer has three main weapons in the fight against CUI. The first and primary defense against CUI is a high quality, immersion-grade coating. The second is a properly designed and installed weather barrier jacketing and, if operating below the atmospheric dew point, vapor barrier. The third and, arguably, least understood element is the choice of insulation material. Historically, hot insulation products have been divided into categories of wetting and non-wetting, or “hydrophobic” materials. The distinction is important because, as pointed out in NACE Standard RP0198-98:

“Because CUI is a product of wet metal exposure duration, the insulation system that holds the least amount of water and dries most quickly should result in the least amount of corrosion damage to equipment.”

A more recent European monograph states flatly:

“Insulation that minimizes water ingress and does not retain water can effectively act as a barrier to CUI.”

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Topics: Weather, Aerogel Insulation, CUI, Wet Insulation, Lightweight Insulation, Process Instability, asset protection

Weighing Your Options for Insulating Spheres

Posted by Richard Schmidt on March 12, 2019

The weight of insulation is becoming increasingly critical for today's congested industrial sites. For some sites, turnaround and maintenance schedules can be negatively impacted by space and weight limitations—just think about the use of cranes where space is restricted as an example. In this post, we focus on the weight of thermal insulation, including when it becomes an important consideration for refinery and chemical processing engineers.

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Topics: Turnarounds, CUI, Wet Insulation, Productivity, Lightweight Insulation, asset protection

Weighing Your Options for Insulating Spheres

Posted by Andrea Giles on February 26, 2018

The weight of insulation is becoming increasingly critical for today's congested industrial sites. For some sites, turnaround and maintenance schedules can be negatively impacted by space and weight limitations—just think about the use of cranes where space is restricted as an example. In this post, we focus on the weight of thermal insulation, including when it becomes an important consideration for refinery and chemical processing engineers.

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Topics: CUI, Productivity, Lightweight Insulation

About This Blog
If you ever wanted to know more about aerogels and the important role they play in our world, this is the blog for you. We’ll shed light on these remarkable materials, starting with our breakthrough innovations in silica aerogel blanket insulations. Join us as we venture into a world where aerogels made from a variety of materials play critical roles in energy storage, natural resource preservation, and more. Welcome to our Aerogel Technology Platform. Welcome to Aspen Aerogels.

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