AG Publications Aquafax Equipment Catalogue

ANODES

www.aquafax.co.uk

MAIN HEADING PERFORMANCE METALS ALUMINIUM ANODES

NAVALLOY ALUMINIUM ANODES

The aluminium alloy used in Navalloy anodes is very different from normal aluminium. It includes about 5% zinc and a trace of Indium, which prevents the build up of an oxide layer. Aluminium anode alloy provides more protection and lasts longer than zinc. It will continue to work in freshwater and is safe for use in salt water. Aluminium is the only anode that is safe for all applications. Most outboard and stern drive manufacturers now install aluminium anodes as standard because they are safe and offer the best overall protection in any type of water. • Aluminium alloy is more active so it gives better protection. • Recommended for both salt and freshwater on Mercury stern drives. • Last up to 30% longer than zinc anodes. • Aluminium anodes "self clean" in freshwater - Zinc anodes can form a coating that stops them working within a few months. • Environmentally friendly. • Mounting hardware included. • Attractively packaged with clear information to aid with selection and installation - reducing the need for trained store staff. A BETTER SOLUTION FOR EVERY APPLICATION Patented red spot Wear Indicator is exclusive to Performance Metals Products. When the red spot appears it's time to change. This plastic indicator is embedded in the anode and appears in the surface of the anode when it wears. EXCLUSIVE RED SPOT WEAR INDICATOR

WHY USE NAVALLOY?

NAVALLOY IN SALTWATER Key benefits over Zinc • Up to 30% longer lasting • Increased protection • 20 times more eco-friendly • Lighter weight • Auto reactivating NAVALLOY IN FRESHWATER Key benefits over Magnesium • Up to 4 x longer lasting • No risk of overprotection

BETTER PROTECTION Navalloy anodes work better than Zinc in saltwater because they generate a more negative voltage therefore providing increased protection. In Freshwater magnesium anodes can sometimes over protect Aluminium hulls or out drives resulting in rapid corrosion and paint lifting. Navalloy Mil.Spec. MIL-A-24779 ECO-FRIENDLY Navalloy anodes are 20 times more eco-friendly than Zinc anodes, and are Cadmium free and Mercury free. The EPA (Environment Protection Agency) has identified Zinc anodes as a major cause of pollution in marinas and so now recommend the use of aluminium anodes.

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SACRIFICIAL ANODE MATERIALS - COMPARISON

ANY KIND OF USE •

Zinc

Aluminium Magnesium

Re-activates after exposure to air. Works immediately on re-immersion.

Voltage (in seawater)

-1.05V

-1.1V

-1.5V

• •

No cleaning required.

Relative life % (zinc = 100 same size) Relative Density % (zinc = 100)

100

130

30

Navalloy anodes can be left permanently immersed or can be used on boats that are regularly lifted in and out of the water (such as trailered boats, boats on lifts or boats left on the hard over winter). Zinc anodes will coat over if exposed to air and need to be burnished before re-immersion.

100

42

27

WHICH ANODE MATERIAL?

Inboard

Outboard

Hull Material

Wood Fibreglass Aluminium Steel

All

ATTRACTIVE PACKAGING Navalloy anodes are packaged attractively with printed text in four languages including fitting instructions.

Freshwater (Pure) Freshwater (Polluted)

Alum Alum/Mag Alum Alum/Mag Alum/Mag

Alum Alum Alum Alum Alum

Brackish

Alum/Zinc Alum/Zinc Alum/Zinc Alum/Zinc

Alum

Salt

Alum/Zinc Alum/Zinc Alum/Zinc Alum/Zinc

Alum

In many cases they are available in complete kits for maximum convenience.