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How to Prevent Coating Failures When Using Repair Kits on Pipelines

How to Prevent Coating Failures When Using Repair Kits on Pipelines

This BLOG will cover TIPS to prevent coating failure as well as Helpful Hints to prevent a Repair Kit Coating from failing.

3 TIPS TO PREVENT COATING FAILURE

#1 Document Everything!!!
#2 Manufacturers Application Specs MUST BE followed
#3 Repair Kits
– the Contractor should record the conditions
– temperature of the pipe
– batch numbers A & B with expiration dates
– dewpoint (record the dewpoint along with pipe surface temperature to ensure that the surface temperature is a minimum of 5°F above the dewpoint and a minimum of 50°F, through cure per manufacturers specifications)
*If you do not record these facts, and there is an issue, it is difficult to determine what part of the process created the failure.

HELPFUL HINTS TO PREVENT A REPAIR KIT (50ml cartridge) COATING FROM FAILING:

  • Incomplete surface preparation
  • Improper pipe temperature vs dewpoint
  • Coating not thoroughly mixed, needs homogenous color 
  • Pipe buried prior to coating achieving required hardness/cure

Do you have more questions or need more tips?
Contact USI at 248.735.7000 or office@USIgroups.com