Catalina Sailboat Teak Brightwork — Finish Stripping

Angela and her husband purchased this Catalina in excellent structural condition. The teak interior was sound, but the previous owner had applied a water-based finish over the original oil — a combination that lifts and clouds rather than curing properly. See the Preparation page for why this combination fails.

The cabin door showed the water-based finish most clearly — milky patches where the film had lifted off the oily teak substrate. Sanding would remove wood material; chemical strippers risk grain staining. Laser cleaning ablates only the topcoat.

Edge grain is where water-based failure is most visible — the finish had separated cleanly from the wood surface, confirming the adhesion incompatibility. This edge required lower energy passes to avoid heating the thin cross-grain section.

The cabin bulkhead panels were worked in sections to maintain consistent pass overlap across the grain. Each panel was inspected between passes — teak's natural silica content means finish lift-off is visible immediately as the surface shifts from milky to warm honey-brown.

The engine cover teak came out with open grain and no residue — exactly the surface condition needed before applying a penetrating oil finish. No sanding required; the laser left the wood dimensionally unchanged.

With the failed water-based topcoat removed from all interior brightwork, Angela's Catalina is ready for a proper teak oil application. The wood surface is clean, dry, and open — conditions that allow the oil to penetrate rather than sit on top.