Northern Vietnam
Hai Phong, Lach Huyen / HICT, Dinh Vu, Nam Dinh Vu, Chua Ve, Tan Cang Hai Phong, Cai Lan, Hon Gai, Cam Pha, Quang Ninh, Van Gia, Mui Chua, Mong Cai, Nghi Son, Cua Lo, Nghe Tinh, Hon La and related northern Vietnam anchorages.
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Propeller Polishing, UWI and UWC Services
SVC Marine handles selected underwater jobs for vessels calling Vietnamese ports, anchorages and shipyards. The job scope depends on vessel location, port permission, weather, current, underwater visibility, diver safety condition, equipment availability and owner’s instruction.
Our underwater services may include:
This video demonstrates practical vessel underwater PP arranged for marine maintenance in Vietnam.
- Propeller Polishing (PP): cleaning and polishing propeller blades to reduce surface roughness, fouling and performance loss.
- Underwater Inspection (UWI): visual inspection of hull, propeller, rudder, sea chest, anodes, draft marks and underwater fittings.
- Underwater Cleaning (UWC): hull cleaning, propeller cleaning, sea chest cleaning, grid cleaning and selected underwater maintenance work.
- Photo and Video Records: underwater evidence for owners, managers, charterers, class, P&I or internal technical review.
- Vessel-Side Attendance: practical follow-up with master, chief engineer, agent, diving team and owner’s technical department.
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Why Propeller Polishing Matters
Propeller surface condition directly affects vessel propulsion efficiency. Marine growth, deposits, roughness and fouling on propeller blades can reduce thrust efficiency, increase fuel consumption, create vibration and affect vessel performance.
Propeller polishing is a practical afloat maintenance option when the vessel cannot enter drydock immediately but still requires underwater performance improvement, inspection evidence or technical condition review.
Depending on the vessel condition, propeller polishing may be requested before a long voyage, after slow steaming complaints, before charter inspection, after fouling accumulation, or as part of owner’s performance improvement work.
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Typical Underwater Work Scope
Depending on vessel condition and owner’s instruction, SVC Marine may handle the following underwater work:
- Review vessel position, ETA, draft, berth or anchorage condition
- Check underwater service feasibility with local diving team
- Follow port, agent and vessel access requirements
- Mobilize qualified diving team and underwater tools
- Carry out propeller blade cleaning and polishing as per agreed scope
- Inspect hull, propeller, rudder, sea chest, anodes and requested underwater areas
- Clean sea chest grids, draft marks or selected underwater areas where permitted
- Collect photo and video records before, during and after the job where possible
- Verify diver comments with vessel crew where required
- Issue completion summary and owner-side report
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Underwater Inspection Areas
Underwater inspection can be used for routine condition check, drydock planning, pre-purchase review, post-contact inspection, class-related attendance or operational troubleshooting.
Inspection areas may include:
- Hull bottom and side shell
- Propeller blades and propeller boss area
- Rudder, rudder stock area and steering-related visible parts
- Sea chest and grids
- Bilge keel and hull appendages
- Draft marks
- Thruster tunnel and grids where applicable
- Anodes and underwater fittings
- Visible coating damage, deformation or marine growth
- Rope, net or foreign object entanglement
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Underwater Cleaning and Sea Chest Cleaning
Underwater cleaning may be required when marine growth affects hull condition, propeller efficiency, sea water intake, draft mark readability or vessel performance.
Cleaning work may include:
Hull cleaning and underwater cleaning remain subject to port permission, local environmental rules, diving safety assessment, weather, current and underwater visibility.
- Propeller cleaning and polishing
- Selected hull area cleaning
- Sea chest and grid cleaning
- Draft mark cleaning
- Removal of visible marine growth where permitted
- Before-and-after photo or video records where possible
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Propeller Polishing Field Execution
Propeller polishing requires more than sending a diver into the water. The team must check vessel access, propeller condition, working area, underwater visibility, current, safety condition, required tools and reporting requirement before work starts.
SVC Marine follows the job from the vessel side and keeps the owner or manager updated with practical information, including diver mobilization status, job progress, visible findings, before-and-after records and any abnormal condition observed during the work.
If the diver finds visible propeller damage, rope entanglement, missing blade material, heavy cavitation marks or abnormal underwater condition, SVC Marine reports the finding to the owner or manager for further technical review.
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Photo and Video Evidence
Underwater photo and video records are important because owners and managers may need evidence for performance review, charterer discussion, class, P&I, drydock planning or internal technical files.
Depending on water condition and equipment capability, reporting may include:
Underwater visibility, current, weather and water condition may affect photo and video quality.
- Before-work propeller condition
- After-polishing propeller condition
- Hull fouling condition
- Sea chest and grid condition
- Draft mark visibility
- Visible underwater damage or abnormal findings
- Diver comments and practical work summary
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Vietnam Port and Anchorage Coverage
SVC Marine handles selected propeller polishing, UWI and UWC jobs at Vietnamese ports, anchorages and shipyards, subject to permission, diving safety condition, local access and diving team availability.
North Central and Central Vietnam
Vung Ang, Son Duong, Formosa Ha Tinh Port, Chan May, Da Nang, Tien Sa, Lien Chieu area, Ky Ha, Chu Lai, Dung Quat, Hoa Phat Dung Quat, PTSC Dung Quat, Quy Nhon, Thi Nai, Vung Ro, Nha Trang, Cam Ranh, Ba Ngoi and Van Phong Bay.
Southern Vietnam
Vinh Tan, Phu My, Cai Mep - Thi Vai, Tan Cang Cai Mep, CMIT, SSIT, TCIT, SP-PSA, Gemalink, Vung Tau, Sao Mai - Ben Dinh, Long Son, Dong Nai, Go Dau, Cat Lai, Hiep Phuoc, Saigon, Ben Nghe, Tan Thuan, SP-ITC, Lotus, Nha Be, My Tho, Can Tho, Cai Cui, Tra Noc and related southern Vietnam ports or anchorages.
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Operational Risks in Underwater Work
Underwater work can be delayed or limited by practical field conditions. These risks should be reviewed before diver team mobilization.
- Port or anchorage permission not granted
- Strong current or unsafe water condition
- Poor underwater visibility
- Weather and sea condition affecting diving safety
- Vessel schedule too short for proper work
- Launch boat or access restriction
- Class or surveyor attendance not aligned with diver availability
- Environmental restriction on hull cleaning
- Photo or video quality affected by water condition
- Scope unclear before team mobilization
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Important Safety and Scope Notice
Propeller polishing, underwater inspection, underwater cleaning, hull cleaning, sea chest cleaning and diver attendance are subject to port permission, local regulation, environmental rules, weather, underwater visibility, current, vessel condition, diving safety assessment and qualified diving team availability.
SVC Marine provides local marine attendance, diving team mobilization, vessel-side follow-up, technical reporting and owner-side documentation. Final approval for class, flag, statutory, insurance or safety-critical matters remains with the relevant class society, flag administration, port authority, insurer, ship manager and vessel owner.
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How SVC Marine Handles Propeller Polishing, UWI and UWC
SVC Marine handles underwater jobs through practical scope review, diving team mobilization, vessel-side follow-up, evidence collection and owner-side reporting.
- Scope review: We check vessel name, port, ETA, target underwater areas, required service and reporting requirement.
- Access check: We follow port, anchorage, agent, launch boat and vessel access requirements.
- Diver team mobilization: We mobilize qualified diving teams based on job scope, location and availability.
- Vessel-side follow-up: We follow master, chief engineer, owner, manager, agent and survey parties where required.
- Field execution: The diving team performs the agreed underwater work and records visible findings where possible.
- Evidence collection: We collect photos, videos, diver comments and completion records where available.
- Owner-side reporting: We report job completion, visible condition and practical next steps to the owner or manager.
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Frequently Asked Questions
Does SVC Marine provide propeller polishing in Vietnam?
Yes. SVC Marine provides propeller polishing services in Vietnam by mobilizing qualified diving teams, following vessel access, collecting underwater records where available and reporting job completion to the owner or manager.
What is included in underwater inspection?
Underwater inspection may include visual checking of hull condition, propeller, rudder, sea chest, anodes, bilge keel, draft marks, underwater fittings and other areas requested by the owner or manager.
Can SVC Marine provide underwater photos and videos?
Yes. Photo and video records can be provided where diving conditions and equipment capability allow. Underwater visibility, current and weather may affect image quality.
Can propeller polishing be done without drydocking?
Yes. Propeller polishing, underwater inspection and selected underwater cleaning jobs can often be performed while the vessel is afloat, subject to port permission, diving safety condition, weather, visibility and vessel schedule.
Which Vietnam ports can SVC Marine cover?
SVC Marine can handle selected underwater jobs at major Vietnam port areas including Hai Phong, Quang Ninh, Cam Pha, Nghi Son, Vung Ang, Son Duong, Da Nang, Dung Quat, Quy Nhon, Nha Trang, Van Phong, Vinh Tan, Cai Mep, Phu My, Vung Tau, Cat Lai, Saigon, Can Tho and other ports case by case.
Technical guides for this work
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