Case Study

Coating over 300 New Pipespools



Pipespools would be subject to service in seawater in Angola.

 

Client

Oil & Gas industry, UK.

 

Scope of Work 

Client required over 300 brand new pipes to be coated to protect from seawater damage, before being shipped overseas for service.

 

Products 

Internal: Polyglass VEPG and Polyglass VEF.

External: Plasmet ZF and Corrothane AP1.

 

Coating System

Internal

•  Internal grit blast to ISO 8501-1 Sa 2 ½.

•  Complete blow down, sweep and vacuum clean.

•  Polyglass applied with a pipe sprayer to a minimum DFT of 1250 microns.

•  Thickness testing and spark testing following adequate cure at 17kv.

External

• Surface protection removed, edges dressed and welds prepared to comply with Corrocoat spec 6/40, weld finish.

• Grit blast to ISO 8501-1 Sa 2 ½.

• 2 coats of Plasmet ZF and a single coat of Corrothane AP1.

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