Tecnoseal TEC-40MG Magnesium Hull Plate Anode 7.5" x 2.75" x 1/2"

The Tecnoseal TEC-40MG is a sacrificial magnesium hull plate anode engineered for freshwater cathodic protection. Magnesium anodes are specifically designed for use in freshwater environments such as rivers and lakes, where their higher electrochemical potential provides the galvanic drive needed to effectively protect submerged metal components from corrosion and electrolysis damage.

Tecnoseal is a world leader in sacrificial anode manufacturing with over 30 years of experience, producing anodes that comply with rigorous quality and alloy specifications. The TEC-40MG is cast from high-purity magnesium alloy and features pre-drilled mounting holes for straightforward through-hull installation.

Key Features:

• Material: High-purity magnesium alloy — the correct choice for freshwater use
• Dimensions: 7.5" x 2.75" x 1/2" plate profile
• Mounting hole spacing: 1-3/4" center-to-center (horizontal), 1-3/8" center-to-center (vertical)
• Hole diameter: 1/4"
• Weight: 0.60 lbs
• Designed to protect hulls, metal fittings, and underwater components from galvanic corrosion in freshwater environments
• Cadmium-free alloy formulation

Important: Magnesium anodes are intended exclusively for freshwater use. Do not use magnesium anodes in saltwater or brackish water, as doing so can cause hull coating damage. For saltwater applications, choose zinc or aluminum anodes. Also cross-references with: M-40M, Martyr CMM40M.