Specialized protection for engine rooms, fittings and metal structures. Built for Cartagena's tropical saltwater environment.
Learn MoreMarine corrosion in the Caribbean
Salt spray, heat, humidity and limited ventilation keep marine metals exposed to moisture and chloride deposits. In engine rooms, bilges and exterior fittings, that combination can accelerate staining, pitting and coating failure when surfaces are not cleaned and protected correctly.
Corrosion is not always cosmetic. Deterioration around mixed-metal connections, fasteners, supports and electrical equipment can affect reliability and lead to more extensive repairs. A documented inspection helps identify the source before specifying cleaning, surface preparation, anodes or protective coatings.
Salt deposits can remain in pores and crevices, weakening protective films and promoting staining or pitting on exposed metal surfaces.
This can occur when dissimilar metals are electrically connected in a conductive saltwater environment. The less noble metal may deteriorate unless the system is correctly isolated and protected.
Warm, humid compartments can trap salt-laden moisture around exhaust elbows, engine mounts and poorly ventilated surfaces, increasing the need for cleaning and coating maintenance.
Inspection-led protection
The exact scope is defined after inspection and may include more than the engine room, depending on access and the boat's condition.
Engines, exhaust elbows, mounts, metal hose fittings, electrical panels and exposed steel or aluminum surfaces in the propulsion compartment.
The propulsion shaft, stern gear, shaft seal and propeller are checked for galvanic exposure and coating or passivation needs. Submerged work normally requires a haul-out.
Inspection of condition, placement and compatibility of zinc or aluminum anodes. Replacement is recommended when the inspection shows it is needed.
Rudders, steering hardware and fittings are checked for visible corrosion, coating damage and areas where dissimilar metals meet.
Arches, rails, rod holders, anchor lockers, ladders and exterior stainless-steel or aluminum hardware can be cleaned, polished or passivated according to the material.
Bilges and internal structures can collect saltwater, freshwater and contaminants. The proposed work may include degreasing, rust removal and a compatible protective coating.
Method
A seven-step workflow adapted to the metal, access and condition.
Visual assessment of accessible components and photographic documentation of the initial condition. We identify visible rust, pitting, coating failure and possible galvanic exposure.
Oil, grease, fuel residue and surface contaminants are removed with products compatible with the work area. Clean preparation is essential for coating adhesion.
Active corrosion and loose coatings are removed with suitable hand or power tools. The level of surface preparation is set according to the selected coating system and safe access.
A compatible rust converter may be used on residual oxidation when the substrate and coating specification call for it. It is not applied as a substitute for proper preparation.
A compatible marine primer is applied to the prepared metal. Product selection depends on the substrate, operating temperature, exposure and finish system.
The specified protective finish is applied in the number of coats and curing intervals required by the selected product. Engine-room temperature and chemical exposure are considered.
We review accessible sacrificial anodes, recommend replacement where appropriate and complete a final visual inspection with before-and-after documentation of the agreed work.
Marine coating options
Written scope and coverage
Durability depends on the metal, existing corrosion, surface preparation, selected coating system, salt and moisture exposure, and maintenance. After inspection, we define the proposed system, maintenance plan and applicable coverage.
* Reference values in COP before taxes. Final pricing depends on inspection, access, materials and the written scope.
Frequently Asked Questions
Protection based on inspection
Request an inspection in Cartagena. We assess the accessible engine room, metalwork and corrosion condition, then prepare a clear written scope and quotation.
Request an Inspection