Application: Crude Pipe
Location: Pasadena, TX
Dimensions: 24" $times 160'
Coating Used: Mascoat Industrial-DTI & Mascoat Industrial-HR
Thickness: Total of 120 mils (3 mm) – 80 mils (2 mm) DTI, 40 mils (1mm) HR
Reason for Application: Corrosion Under Insulation (CUI)
During the spring of 2012, this refinery stripped the conventional insulation off of a 24” x 160’ crude pipe and saw that it was covered with CUI. Most of the pipe ran underground and came out of the ground for 160’ with a temperature around 65-70°F (18-21°C). The refinery needed to keep the crude as close to that temperature as possible for their process and knew that if left uninsulated, the crude would unwantedly heat up from radiant heat gain.
To avoid having the CUI that they had before with conventional insulation, they used Mascoat Industrial-DTI and Mascoat Industrial-HR for their insulation system. After the corrosion was removed and an epoxy primer was applied the contractor applied a total of 120 mils of Mascoat; 80 mils of Mascoat Industrial white and light gray to alternate colors and the final 40 mils Mascoat industrial-HR to gain superior radiant heat reduction.
Mascoat performed a Thermal Analysis Request (TAR), which showed that under the 120 mils (3 mm) of Mascoat, the temperature would only increase a fraction of a degree. After the extreme heat of the Pasadena, TX summer, the TAR was confirmed and the refinery’s process ran smoothly with no issues of radiant heat gain.