GRINDING DOWN TO THE CORE TO REMOVE BLISTERS - (Episode 349)
1 February 2026 · 23 min · 177K views · Rebak Island, Langkawi
Workers grind rudder, water spraying in close-up
What this video covers
A Lagoon 450 undergoing osmosis repair at Reebok Island Marina in Malaysia requires extensive hull grinding after moisture meter readings reveal widespread water intrusion.▶ 0:02 Initial inspections identified small surface blisters, but subsequent grinding exposed deep-seated moisture in the fibreglass layup, balsa core, and rudders.▶ 6:16 The crew discovered that factory-applied filler contained voids, and previous repairs failed to address underlying dampness, necessitating the removal of gelcoat and multiple layers of fibreglass along the entire centreline of both hulls.▶ 9:17 Additional moisture was traced to leaking deck screws and structural damage from a prior log impact.▶ 17:08 To maintain hull integrity during the repair, the crew installed extra supports under the bridge deck and hulls.▶ 15:01 The project involves replacing the removed material with epoxy and new fibreglass to create a stronger, moisture-resistant barrier.▶ 4:41 The crew emphasises that moisture meters are essential for identifying hidden water damage that gelcoat hides, noting that thorough inspection often reveals more extensive structural issues than initially apparent.▶ 11:21
Boats in this video
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