The Fullkote Insitu Coating System

The Fullkote Insitu Coating System is a multi-layered thin-film barrier coating that protects the pipeline’s inner surface from the attachment of corrosive elements. Existing pipelines are inspected, evaluated, cleaned and coated “In-place”. Utilizing the double pig method to batch cleaning agents, surface preparation chemicals, drying agents, and finally the specially formulated epoxy coating, the pipeline is rejuvenated with the techniques perfected by Fullkote personnel.

Cleaning......

There is no substitute for the requirement to clean the line to bare metal, passivating and inhibiting the surface, drying and finally coating with a proven procedure. The following steps are necessary to ensure optimum cleaning of the pipe wall:

Conduct a laboratory analysis of the deposits on the pipe interior.
Select the appropriate solvent, detergents and cleaning pigs.
Attach pig launchers and receivers stations to the pipeline.
Carry out pig runs to remove fluids and loose debris from the pipe.
Initiate solvent and acid runs as required.
Inspect spool pieces for complete removal of internal deposits.
Chemically dry and condition the pipe wall

Coating......

With the line cleaned to the required NACE 2 Standard, the coating application can take place. The coating material selected will be formulated specifically for use as an insitu applied coating and suitable for the pipeline service and operating conditions. The following procedures are followed under constant supervision to ensure a uniform coating of the desired mil thickness:

The coating material is mixed and loaded between two specially designed pigs held together with air pressure on both sides.
The pig train is then moved through the pipeline by differential pressure, applying a thin film of coating as it passes.
After the initial application is complete the coating is allowed to cure for approximately 24 hours.
Additional coating runs are then made in the same manner as the first, until the desired mil thickness is achieved.
Spool pieces are then inspected to determine adequate coating thickness.

Quality Control......

Fullkote Quality Control procedures consists of overseeing and documenting each and every step of the surface preparation and coating application operations and are essential features of the process. A written quality control and quality assurance procedure is submitted to the owner prior to the start of the project and a Final Inspection Report is issued upon completion.