The Sailing Brothersvideo
"OSMOSIS ATE OUR RUDDERS : Can We Save them?"
27 July 2025 · 25 min · 29K views
What this video covers
Adam and Luke, owners of a catamaran, perform DIY osmosis repairs on their rudders and keels while hauled out at the Royal Suva Yacht Club in Fiji.▶ 11:03 Upon grinding into the rudders, they discover saturated foam cores and water ingress, a common issue they attribute to water traveling down the rudder shafts.▶ 4:32 Lacking the time for a full rebuild, they clean the voids with acetone, fill deep sections with fiberglass and epoxy, and seal smaller blisters with underwater epoxy putty.▶ 5:17 They use West System 105 resin with 206 slow hardener for the repairs, followed by a fairing compound.▶ 5:25 After sanding the surfaces to remove amine blush, they apply two coats of Transocean 1.99 epoxy sealer as a barrier coat.▶ 17:49 The project concludes with the application of antifouling paint. The crew emphasizes that they are novices who relied on local advice and assistance from the yacht club to complete the work.▶ 11:03
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