Commercial diving support and evidence-based underwater services for hull, sea chest/intakes, rudder and propeller—inspection support, cleaning verification and documentation.

Underwater Services — Technical Specification

Integrated Service Framework

Seachios® provides underwater services below the waterline to support vessel readiness, reduce operational risk, and document visible condition with structured photo/video evidence. Findings and recommendations are evidence-based and limited to what is visually confirmed during the operation.

Core Service Lines

Underwater Inspection (visual support)

• Visual assessment support for hull, rudder, propeller, sea chests/intakes, and appendages.

• Evidence captured as high-definition photo/video and organized by zone/area for review.

• Notes focus on visible condition only (no thickness gauging, NDT, or internal inspection unless explicitly contracted and feasible).

Hull Cleaning

• Removal of marine growth and deposits using appropriate manual/mechanical methods suited to the local job plan.

• Cleaning scope and “done criteria” confirmed per vessel condition and port constraints.

• Before/after evidence captured when visibility and operational conditions allow.

Rudder Cleaning

• Targeted cleaning on rudder surfaces, weld seams and accessible niche areas.

• Visual checks recorded with close-up evidence where accessible.

Propeller Polishing

• Progressive polishing approach aligned to operational goals and propeller condition.

• Before/after photo/video evidence recorded for traceability.

• Any performance improvement depends on vessel condition and is not guaranteed.

Seachest Cleaning (grates/strainers where accessible)

• Cleaning support for sea chest gratings/strainers and accessible intake areas.

• Visual evidence captured for condition and cleanliness verification where visibility permits.

• Internal chamber access is subject to vessel configuration and safety constraints.

Underwater Welding (when applicable and authorized)

• Underwater welding support may be performed only when technically feasible, authorized by the client, and permitted by the applicable operational requirements.

• Any acceptance/approval is subject to the responsible surveyor/authority and the agreed scope.

Marine Growth Removal from Appendages

• Focused removal on niche areas (appendages, brackets, edges, local hotspots).

• Evidence capture supports documentation and follow-up planning.

High-Definition Imaging and Reporting

• High-definition photo/video evidence to support technical review.

• Evidence is organized by zone and delivered with clear naming and traceability.

Surveyor-Ready Compliance Documentation (evidence-based)

• Documentation designed to support review by ship management, clients, and surveyors.

• Records are evidence-based; acceptance and equivalence decisions remain with the responsible authority/surveyor.

Typical Deliverables

• Photo/video evidence set organized by area/zone (hull / stern / intakes / appendages).

• Observations based on visible condition only.

• Before/after comparison set (when applicable and conditions allow).

• Recommendations for follow-up actions and monitoring (qualitative and evidence-based).

Service Coverage — Ports & Terminals

Operational availability varies by port conditions and required permissions. Frequent service points include:

• Rio Grande

• Santos

• Paranaguá

• Antonina

• Imbituba

• São Francisco do Sul

• São Sebastião

• Rio de Janeiro

• Itaguaí

• Vitória

• Tubarão

• Praia Mole

• Salvador

• Aratu

• Suape

• Maceió

• Recife

• Cabedelo

• Pecém

• Itaqui

• Fazendinha

• Macapá

• Vila do Conde

• Barcarena

• Mosqueiro

• Santarém

• Itacoatiara

• Manaus

• Natal

• Termisa Offshore Terminal

International support may also be arranged for Argentina, Uruguay, Chile, and Panama upon request.

Safety, Constraints and Evidence Rule

• All statements are limited to visible evidence captured during the job.

• Underwater conditions (visibility, current, lighting, access) may limit coverage.

• No measurements, sampling, or hidden-area assumptions are included unless explicitly contracted and feasible.

Request Support (24/7)

For operational response and scheduling:

• Operations (24/7): +55 13 99690-9290 (WhatsApp)

• Office: +55 98 3022-7117
  Use the Contact page to request a quote and confirm scope.