From Requirement Assessment to After-Sales Support

Strong project support starts by understanding the operating requirement and continues through product selection, technical submittals, delivery coordination and after-sales assistance.

Supporting the Full Project Lifecycle

Clear communication and accountable technical support reduce risk and help projects reach reliable long-term outcomes.

Why Field Joints Need Special Attention

During pipeline construction, pipe sections are joined by welding after the mainline coating has already been applied. The exposed joint must then be prepared and protected on site. Variations in weather, surface condition, access and workmanship can all affect the result.

A well-designed field-joint system should create a durable transition between the factory coating and the protected joint while resisting moisture ingress, soil stress and the operating conditions defined for the pipeline.

Start with the Operating Environment

There is no single protection technology for every project. Selection should begin with the actual service and installation conditions, including:

• Pipeline operating and installation temperatures.
• Factory coating type and compatibility requirements.
• Soil conditions, moisture exposure and mechanical stress.
• Joint geometry, pipe diameter and construction sequence.
• Application resources, inspection requirements and project schedule.

Surface Preparation Defines the Foundation

Even a high-performance system cannot compensate for an inadequately prepared surface. The joint area should be clean, dry and prepared to the specification required by the selected product. Contaminants, loose material, sharp edges or trapped moisture can weaken adhesion and interrupt protection.

Preparation also includes checking the adjacent factory coating and creating the correct transition zone so the field-applied system can bond consistently across the complete joint.

Select a Compatible Protection System

Heat shrinkable sleeves, polymeric tapes, liquid coatings and other engineered technologies each have appropriate applications. The correct choice depends on the complete project requirement rather than one product characteristic.

Compatibility with the mainline coating, expected thermal and mechanical loads, installation method and inspection plan should be evaluated together. Early technical coordination can prevent delays and specification conflicts later in the project.

Control the Application Process

Consistent application requires trained personnel, suitable equipment and a documented sequence. Material storage, preheating where required, overlap, sealing and visual inspection should follow the approved procedure. Environmental conditions must also remain within the product’s application limits.

• Verify material identification and storage condition before use.
• Confirm surface preparation and joint readiness.
• Monitor application parameters throughout installation.
• Inspect the completed joint against the approved criteria.
• Record results to support traceability and handover.

A Complete Approach to Pipeline Integrity

Effective corrosion protection combines requirement assessment, system selection, controlled application and continued technical support. Treating the field joint as part of the complete pipeline system—not as an isolated construction detail—helps protect operational reliability and service life.

Infinity supports infrastructure projects with anti-corrosion technologies, technical coordination and field-focused solutions selected around project conditions. For project-specific requirements, our team can help evaluate the application and identify an appropriate protection approach.