BELZONA STOPS TANK LEAK AT NUCLEAR POWER PLANT
Industry: Power (POWR)
Application: FBC-Fans, Blowers and Compressors (FBC)
Substrate: Steel
Customer Location: Northern Texas, USA
Application Date: October 2014
Products:
Belzona 1291 (ES-Metal)
Belzona 9431 (Instant Bridging Tape)
Belzona 1111 (Super Metal)
Problem: Pinholes developed in the tank that is used for emergency backup water for refueling. After testing it was discovered that a large area of the 3/16" steel sidewall was only .050 thick.
Photograph Descriptions
- Plugging active leak
- Patching over Belzona 1291
- Applying Belzona 1111 with Belzona 9431
- Completed application
Application Situation
Pinhole Leaks and Thin Sidewall.
Application Method
The paint was removed and the surface was steel grit blasted to a 3 mil profile. Two of the pinholes were 1/2" in diameter and bolts with flat washers were coated with Belzona 1291 and placed into the holes. The third hole was 1/8" diameter and a sheet metal screw with a flat washer was coated with Belzona 1291 and placed into the hole. The first layer of Belzona 1111 was applied about 1/8" thick. Then Belzona 9431 was applied with the second coat of Belzona 1111.
Belzona Facts
The planned refueling shutdown was able to start on time without delay, saving the plant millions.
