This Tecnoseal zinc shaft anode 55/19 mm protects 19 mm propeller shafts against galvanic corrosion by corroding instead of the shaft, propeller, and other metal parts.
The anode is mounted directly on the shaft and is used for most leisure boats with a 19 mm shaft diameter. The zinc acts as a sacrificial anode and must be replaced when it has eroded to approximately half of its original size.
It is fastened with bolts through metal inserts at the bolt holes, which ensures good electrical contact and keeps the anode in place during operation. The shaft should be cleaned of paint, grease, and rust before installation to ensure direct metal-to-metal contact.
Key features
Protects 19 mm propeller shaft against galvanic corrosion
Zinc anode that corrodes instead of the shaft and metal parts
Mounted directly on the shaft with bolts
Metal inserts at bolt holes ensure electrical contact
Outer diameter 55 mm and weight 0.89 kg
