Hull crack repairs involve fixing fractures in the ship's structure to ensure watertight integrity and safety. Hull and structure services include inspections, maintenance, and repairs to maintain vessel strength and performance. These services are essential for preventing leaks, corrosion, and structural failures.

Size: Varies based on hull dimensions; typically covers cracks from 1 mm to 50 mm in width.

Grade: Marine-grade repair materials compliant with ISO 12215-5 and ASTM standards.

Viscosity: 500-10,000 cP (depending on application method and filler type).

Buoyancy: Neutral buoyancy maintained post-repair to ensure hull integrity.

Material: Epoxy resins, polyurethane fillers, or composite laminates (fiberglass, carbon fiber).

Curing Time: 2-24 hours (varies by product and ambient conditions).

Tensile Strength: 20-50 MPa (after full cure).

Adhesion Strength: ≥5 MPa (substrate-dependent).

Temperature Resistance: -30°C to +80°C (operational range).

Corrosion Resistance: Saltwater and chemical-resistant formulations.