Tecnoseal 8.38 in Magnesium Marine Hull Plate Anode

The Tecnoseal Magnesium Hull Plate Anode measures 8-3/8 x 4-1/32 x 1-1/16 inches and weighs 1.80 lb. It's a hull plate for freshwater boats. It bolts below the waterline and connects to the bonding system.

Magnesium is the most active anode metal and is meant for fresh water only, since in salt water it overprotects and wears away very quickly. An anode is a sacrificial metal that corrodes in place of your drive, propeller and other underwater metal. Freshwater boats need magnesium because fresh water doesn't conduct well enough for zinc to work.

Replace anodes when they're about half consumed, and never paint them, because paint stops them from working. Stick with one anode metal on a given drive or hull instead of mixing zinc and aluminum. Aluminum and zinc plates are in our marine anodes section.

• Magnesium plate for fresh water
• 8-3/8 x 4-1/32 x 1-1/16 inches
• 1.80 lb
• Bolts below the waterline