Nature of defect
The Close Drain and HP flare had suffered from external corrosion so severe that it had to be replaced. The client required a composite repair to wrap over the newly replaced pipe that will add structural reinforcement and external corrosion protection.
SOLUTION
Metalyte Pipeworks produced a repair method using Herculyte epoxies to wrap over the geometries requiring protection with a minimum overwrap of 4 layers of Dragon-QUAD-UHT composite system.
REPAIR METHOD
The surface was prepared (excluding the identified defect area) using an MBX machine to gain a surface profile to SSP.SP11. Dragon resin was applied as a bonding coat to the entire repair area prior to application of the Dragon composite. The repair area was wrapped in 4 layers of Engineered Drag- on-QUAD-UHT composite. The composite repair was allowed to cure until a minimum of 74.5 “Shore D” hardness was achieved.
