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A Fountain Pajot Helia 44 catamaran undergoes a keel reinstallation at a boatyard in Charleston, South Carolina, after the starboard keel was removed to repair internal water damage and failing foam core.0:07 The repair process involved clearing out wet foam and MDF, drying the keel, and pouring new foam before fairing the exterior.1:34 To ensure a successful bond with Sikaflex 292 adhesive, the team conducted timed tests to determine the working window in high heat and humidity, establishing a 20-minute limit for application and positioning.9:37 They utilized electric caulking guns to apply 16 tubes of adhesive in eight minutes, followed by a precision lift using a floor jack, stainless steel tubing for fore-and-aft alignment, and wooden guides to prevent scraping.14:34 After curing for five days, the support wedges and jacks were removed, confirming the keel remained securely in place.17:31 Proper surface preparation using Sika 209D primer and extensive dry-run practice proved essential for managing the rapid cure time of the moisture-sensitive adhesive.12:13

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