Sven Yrvindvideo
Polishing the Coppercoat.
March 1, 2026 · 3 min · 3K views
What this video covers
Sven Yrvind prepares the hull of his small, amphibious boat for cold-water sailing by sanding the copper-coat epoxy finish.▶ 0:01 He uses Abranet abrasive sheets, specifically recommending a grit of 400 or at least 260, alongside Scotch-Brite pads to remove surface oxidation and prepare the bottom for the water.▶ 2:01 The process requires manual sanding across the entire hull to prevent uneven growth of algae and seaweed.▶ 1:03 To access the underside of the vessel, Yrvind rotates the boat onto its side, allowing him to work on the rudder and daggerboard.▶ 2:30 This maintenance ensures the hull remains smooth and clean, which he notes serves as a practical indicator for monitoring marine growth during future voyages. The task is repetitive but necessary for optimal performance in high-latitude conditions.
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