Antifouling Coating · Paint & Coating Systems
In the demanding environment of marine hull and tank protection, robust coatings are essential to ensure long-term performance and efficiency. HEMPEL’S ANTIFOULING OCEANIC+ 73902, HEMPEL’S ANTIFOULING OCEANIC+ 73952 are designed to meet these challenges with advanced properties tailored for marine applications. These coatings offer a dry film thickness (DFT) of 100 µm and require a surface roughness of Sa 2.5 ISO 8501-1, ensuring optimal adhesion and performance. The curing time is temperature-dependent, with full curing taking 1-2 months, while the overworking window ranges from 5 to 47 hours based on ambient conditions. Common issues that can arise include insufficient surface preparation, salt contamination leading to blistering, and dry film thickness outside the specified range of 80% to 120%. It is crucial to perform thorough inspections and adhere to Hempel's guidelines for surface roughness and cleanliness. For instance, using an ion tester to ensure salt levels are below 50 mg/m² can prevent adhesion issues. Additionally, maintaining a minimum pull-off strength of 2.5 MPa, with higher values required for immersion conditions, is essential for preventing delamination and corrosion. Service and maintenance involve regular coating inspections during docking intervals, checking anodes every six months, and performing touch-up work immediately on any damage. HEMPEL’S ANTIFOULING OCEANIC+ 73902, HEMPEL’S ANTIFOULING OCEANIC+ 73952 should be renewed every five years to ensure continued protection against fouling and corrosion. Keeping touch-up paint on board for each coating system in use is also recommended to address any immediate issues effectively.
What our service work and the manufacturer documentation say about keeping this model running.
Coating inspection at docking. Anode check every 6 months. Touch-up work immediately on damage. Antifouling renewal at docking (every 5 years).
Hempel A/S: Keep touch-up paint on board for every coating system in use. Anodes as required at docking.
Listed in the DNV Approval Finder at the time we recorded it. The certificate is issued by DNV, not by us; check its current status at DNV.
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