MJ Sailingvideo

Catamaran Build - SUIT UP TO STRIP DOWN!! (MJ Sailing - Ep 357)

May 3, 2025 · 19 min · 41K views · Kent Island

What this video covers

The crew prepares the catamaran’s bridge deck and galley area for painting by sanding seams and applying fiberglass.0:19 To bond the hull-to-deck seams, they use a belt sander and grinder to reach bare fiberglass, then apply TotalBoat polyester structural repair putty to fill voids.2:07 They reinforce these non-structural seams with two layers of fiberglass cloth, saturated with polyester resin, and finished with peel ply to compact the laminate and simplify fairing.5:25

For the interior painting phase, the crew tapes off cabin sides and galley bulkheads, ensuring surfaces are prepped and marked with their sanding grit to prevent contamination.8:08 They clean surfaces with acetone to avoid print-through issues encountered in previous sessions.9:39 After applying paint, they use a specialized foam tape to blend new paint lines with existing finishes.15:11 The process concludes with removing masking tape to reveal clean edges on white oak trim.13:51 Proper surface preparation, including acetone wipes and grit-specific sanding, prevents paint defects like print-through and ensures a smooth finish on flat surfaces.

Watch on YouTube

More from MJ Sailing

How Can a Light Switch Be SO COMPLICATED??!! (MJ Sailing - Episode 381)Aug 2026Painting the Accent Walls On Our Home Built Catamaran (MJ Sailing - Episode 380)Jul 2026The Details That Keep a Boat Dry (MJ Sailing - Episode 379)Jun 2026Preparing Our Catamaran for Paint—and Me for Captain's SchoolJun 2026

From MJ Sailing — see the channel’s boat, crew, and every analyzed video.

The Sailing Directory Newsletter

One email with the fleet's best finds — the moments, boats, and stories worth your watch time. Enter your own address to get your own copy.

Report an issue