Why This Is Happening

The recent barnacle infestations are occurring due to:

• Warmer than normal water temperatures
• Environmental changes causing population explosions of barnacle larvae
• Localised conditions creating ideal breeding environments

Importantly, this problem affects all types and brands of antifouling paint. Even the best antifouling products can be overwhelmed when there are extremely high levels of barnacle spawn in the water.

How Antifouling Works (And Why It’s Being Overwhelmed)

Copper biocide in antifouling paint works by deterring barnacle larvae from attaching to your hull. However, if a barnacle does manage to attach and molt into adult form, it becomes resistant to copper and can grow undisturbed.

What Boaters Are Experiencing

According to AkzoNobel’s research:

• The same antifouling product may work perfectly in areas near the problem zones
• Vessels that remove barnacles and leave affected areas generally perform normally
• Boats launched or cleaned during cooler water temperatures tend to perform better
• Vessels remaining in affected areas are likely to be re-infested if conditions persist
• Changing antifouling brands while staying in the same area typically doesn’t solve the problem
• Polishing and ablative (softer) antifouling types seem to perform slightly better than harder types

Recommendations for Boat Owners

1. Talk with locals to identify barnacle hotspots and avoid these areas when possible
2. Check underwater areas of your hull monthly if you’re in or near affected regions
3. Remove barnacles while they’re small and easier to displace
4. Clean underwater areas before leaving any region to prevent spreading
5. Re-check two weeks after leaving to ensure you haven’t brought hitchhikers
6. Be aware that barnacles left for months can grow to 10-15mm, making removal more difficult

If you must remain in an affected area, perform regular hull checks, especially during summer months. The good news is that the problem typically subsides when water temperatures cool down.

Should you have any questions about this issue or the appropriate antifouling products for your vessel, please feel free to contact Harry.

Happy boating!

Marine Detailing Company

Phone: 0211758174

The post Barnacle Boom: What Antifouling Paint Manufacturers Are Saying appeared first on Marine Detailing Company.

Antifouling performance is influenced by numerous factors, each subtly affecting different types of antifouling coatings. As human activities encroach on natural coastlines, the foreshore undergoes physical modifications and pollution, impacting the habitats of indigenous species and introducing non-native species via ocean currents, international shipping, and recreational vessels.

The Impact of Coastal Development on Biodiversity

Natural coastlines are increasingly being modified with structures like wharves, docks, marinas, and sea walls, along with land reclamation projects and the introduction of building materials. These changes reduce natural habitats for many species. Industrial activities, urban sprawl, and direct marine activities often lead to substantial pollution from wastewater. Agricultural runoff introduces excessive inorganic nutrients, such as nitrogen and phosphorus, into streams and rivers, ultimately reaching coastal waters.

Algae Blooms and Dead Zones

Excessive nutrients feed short-lived algae blooms, and the decomposition of these microorganisms consumes the oxygen in the water column, creating dead zones that devastate local ecosystems. Marinas, with their human waste, oil, and fuel leaks, contribute to localized dead zones, especially where dredging stirs up contaminated sediments. This mix of contaminants, metals, tannins, and nutrients creates a sticky layer that adheres to everything, leading to the accumulation of silt, mud, and algae on hulls and decks.

Coexisting with Fragile Ecosystems

Despite efforts to coexist with natural environments, human activities inevitably add contamination to fragile ecosystems. To manage the impact, we often introduce biocides, pesticides, and other contaminants into the waters to keep boat hulls clean. Understanding the local environment is crucial in selecting the appropriate antifouling type.

Factors to Consider in Antifouling Selection

• Location: Is your boat in a marina above mud, a tidal river, or an open ocean flow?
• Contamination: Assess the level of contamination in the mud and water.
• Biodiversity: Determine the biodiversity supported by the local environment.
• Surroundings: Consider nearby ecosystems like mangroves, estuaries, and harbors versus artificial structures like concrete walls and rock barriers.

Choosing the Right Antifouling

Selecting the right antifouling can feel like a lottery. As the owner-operator of Marine Detailing Company, I have found that:

• Soft Antifouling: Self-polishes, sheds settlement fouling, and is ideal for areas with mechanical fouling like weed algae and barnacles.
• Semi-Soft Antifouling: Offers longer duration and self-polishing properties, making it my preferred choice.
• Hard Antifouling: Suitable for larger boats and planning hulls, as it withstands high water flow and can be manually cleaned.

The Challenge of Barnacles

Barnacles, which start as tiny larvae, attach to surfaces using a glue-like substance and form calcium hard plates. They cluster together, reducing a vessel’s performance and fuel efficiency. Hard antifouling with limited ablative effects may struggle in static environments but are effective in saltwater conditions.

Innovative Antifouling Solutions

Modern advancements have introduced antifouling wraps, high-silicone content antifouling, and technologically advanced coatings. Among these, my personal preference is Altex No. 5 and Sea Barrier 3000, which offer strong copper content and effective biocides for fouling prevention.

Ensuring Proper Antifouling Application

Changing antifouling types requires a primer to ensure proper adhesion. Using like-for-like antifouling or applying a primer when switching types guarantees optimal performance. At Marine Detailing Company, we provide competitive and knowledgeable antifouling services across all main marine centers in Auckland, offering advice, cost-effective solutions, and time-saving services.

Comprehensive Boat Antifouling Services

Boat antifouling is essential not only for protecting the ecology but also for enhancing your boat’s performance and maintaining efficiency. Auckland antifouling must be regimented, as our marine environment is unique and requires specialized maintenance to prevent the spread of unwanted biodiversity. We provide the right solution for boat antifoul and polishing to ensure your boat performs efficiently through the water. Our services save you money and time, and we offer antifouling and polishing services across all main marine centers throughout Auckland. When you’re thinking of Auckland antifouling, give us a call.

Tailored Antifouling Solutions for Different Needs

Boat antifouling has a range of performance parameters. Whether you have a fast or slow boat, hard or soft antifouling options, and budget considerations, we can help determine what works best in Auckland antifouling zones or the Bay of Islands. It’s important to note that not all antifouling services in Auckland are committed to building a solid relationship with you, the customer. Antifouling NZ offers a range of products that work well in different areas, so call us to discuss your specific needs.

The two most common antifouling brands in New Zealand are Altex and International, though others like Jotun, Hemple, and Vivid Petite also offer excellent options. Renewal of antifoul should typically match the existing brand unless a primer is used during the conversion process.

Conclusion

For expert antifouling services in Auckland, trust Marine Detailing Company. We ensure your boat maintains efficient performance through the water with our comprehensive antifouling and polishing solutions. Contact us for all your antifouling needs and benefit from our professional advice and services.

The post Maximising Antifouling Performance: A Comprehensive Guide appeared first on Marine Detailing Company.