Hull Services
Hull Treatments
Advanced surface preparation and protective hull coatings
Antifouling
Protective coatings to prevent marine growth and optimise performance
- Reduced drag and improved hydrodynamic efficiency.
- Lower fuel consumption and emissions.
- Protection of the hull surface against marine growth.
- Extended coating lifespan under controlled application.
Performance & Capabilities
- Suitable for full hull coatings and partial underwater areas.
- Application under controlled environmental parameters (humidity, temperature and surface condition).
- Compatible with all major antifouling systems and paint manufacturers.
- Integrated quality control throughout preparation and application phases.
- Simultaneous project capacity by Nautiunderwater: up to 10 antifouling projects across different locations.
Sandblasting
Abrasive surface preparation for heavy-duty coating systems
- Effective removal of heavy coatings and corrosion.
- Creation of an optimal surface profile for coating adhesion.
- Suitable for localised repairs or full surface preparation.
- Industry-standard method for steel substrate preparation.
Performance & Capabilities
- Nautiunderwater sandblasting to bare metal capacity: up to 400 m² per day.
- Suitable for localised areas or complete hull sections.
Adjustable blasting grades according to project requirements and coating specifications. - Compatible with steel hulls and structural components.
- Execution following defined safety and containment procedures.
Water Jetting
High-pressure water cleaning using automated robotic systems
- No need for protective coverings – Saves time and costs.
- Zero solid waste generation – Unlike abrasive blasting, it eliminates aluminium silicate and copper slag residues.
- Eco-friendly and safer process through water recycling.
Performance & Capabilities
- Surface preparation rates from 18 m²/hr (140 m²/day) with one team and one shift.
- Maximum capacity of up to 72 m²/hr (570 m²/day) using automated robotic systems.
- Controlled pressure range (1,000–1,500 bar) suitable for antifouling removal down to primers or substrate.
- Precise and uniform cleaning across large hull areas with reduced operator exposure.
- Water recovery options and recycling for improved sustainability and safer working conditions.
QUALITY
Precision sets the standard
Nauti standard
Unwavering commitment to underwater performance and protection.
What sets us apart is the application of measurable and verifiable Quality Standards through our own management model, the NautiStandard — specifically adapted for underwater and corrosion-critical operations.
The NautiStandard is built on a comprehensive system of controls, inspections and performance tests carried out throughout every phase of underwater works, from surface preparation to final coating application.
These procedures ensure that each stage meets strict technical criteria, guaranteeing long-term protection, structural integrity and reliable performance below the waterline.
This model is based on the principles of ISO 9001 and aligned with the technical guidelines of ICOMIA.
Our standards go further, incorporating stricter internal protocols specifically developed for corrosion control, surface preparation and underwater coating systems.
Key quality inspection points
Visual inspection of cleanliness.
Visual inspection of the cleanliness grade and surface profile.
Soluble salts assessment.
Surface dust assessment.
Assessment and control of ambient conditions.nt.
Assessment of dry film thickness.
Visual inspection of the Paint finish.
Quality control at every underwater stage
Our Quality Department works closely with the client and the Paint Inspector to ensure compliance with the highest standards and the requirements of the Inspection and Test Plan (ITP).
The Quality Management inspectors from our independent division continuously collect data to maintain optimal conditions and achieve flawless results in every project phase.
To meet the specific needs of our clients, we also collaborate with renowned external and independent inspectors, such as WREDE, CCS, ATLAS, MYPAI, and OPTIMIZA.
As part of this process, every layer of the coating system — from substrate preparation to the final top coat — is applied and verified under strict quality protocols.
substrate
Sandblasting
Anticorrosive Primer
High Solid Primer
Tie Coat
Antifouling
ISO Certified Company
Local governmental
obligations
PP-1020/CAIB
PRODUCT KNOWLEDGE
Close collaboration with leading coating manufacturers
