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www.giorgiomalusa.fr

UNDERWATER HULL
The underwater hull is constantly stressed and often neglected.
The hull, antifouling, and protective coatings influence a boat’s performance and longevity.
In this section, I cover common issues and effective solutions below the waterline.


The Importance of Sacrificial Anodes and the Effects of Galvanic Currents Onboard
Seawater is one of the most aggressive environments for metallic materials. The combination of salinity, dissolved oxygen, and electrical potential differences generates a natural phenomenon called galvanic corrosion , which can slowly damage metal components, seawater intakes, and submerged parts. Sacrificial anodes are one of the most effective and simple protections against this phenomenon. What is a sacrificial anode? A sacrificial anode works according to a fundamental p
Feb 232 min read


Antifouling Paints and Primers for the Hull: Optimal Protection and Performance for Your Boat
Maintaining the hull is one of the most important aspects to ensure speed, efficiency, and longevity of your boat . Immersed surfaces, from keels to propellers, are constantly exposed to corrosion, fouling, and marine growth—phenomena that can slow the boat, increase fuel consumption, and damage materials. In this article, we will explore antifouling paints, epoxy primers for the hull, and specific solutions for keels and submerged metals , focusing on the most effective stra
Feb 23 min read
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