Sailing Suriavideo
New Coppercoat - with warranty! And we're switching to Trudesign #sailing #shipyard
20 March 2026 · 18 min · 1K views · Portimão, Portugal
Waves crash against Portimão breakwater under stormy sky
What this video covers
A Lagoon 410 catamaran undergoes a full underwater hull refit at a shipyard in Portimão, Portugal, to address Coppercoat failure and replace all through-hull fittings with TruDesign composite valves.▶ 0:15 After hauling the boat, the crew discovers widespread white spots in the existing Coppercoat, which the yard agrees to replace under warranty due to poor adhesion to the previous epoxy primer layer.▶ 5:05 While the hull is stripped and recoated, the owners replace 22 of their 24 through-hull fittings with TruDesign components to eliminate future corrosion risks.▶ 10:38 Two fittings in the engine room remain metallic due to incompatible thread types.▶ 16:15 During the yard period, the crew also repairs a faulty diesel pump on their generator.▶ 1:40 The project requires careful management of waste water and living conditions while the boat remains on the hard.▶ 6:05 The refit concludes with the activation of the new Coppercoat and the restoration of onboard plumbing systems.▶ 13:26 Regular monitoring of shipyard staff is necessary to ensure clean masking and application of the antifouling.▶ 11:10
Boats in this video
More from Sailing Suria
From Sailing Suria — see the channel’s boat, crew, and every analysed video.