Marine zinc anodes are widely used to protect commercial, private and military vessels and structures from corrosion or rust in a marine environment. Their sacrificial nature prolongs the service life of boats, ships, watercraft and marine structures.
Zinc anodes are the preferred choice for protection in saltwater applications as they are less resistant to the electrolytes produced in saltwater. The zinc, in essence, prevents corrosion and rust in other metal surfaces as the zinc attracts corrosion first and dissolves over time, protecting hulls and other metal parts from damage by “sacrificing” itself.
Our bar and plate anodes, available in “bolt-on” and “weld on” styles, in streamlined, semi-streamlined and teardrop formats, are specially formulated to provide superior corrosion protection of the hull and components of marine vessels and structures. Both styles use either aluminum or steel inserts. Weld-on hull anodes have projecting tabs for tack welding directly to the ship’s structure. Steel tabs (straps) are provided as standard. Aluminum tabs are available on most anodes. Popular modes and sizes are available from inventory.
Browse our selection of marine anodes and zinc anode rods in Canada below and contact us directly for your requirements.
COMMERCIAL HULL ZINC ANODES (MEDIUM TO LARGE VESSELS) | |||||
Type No. BAR ANODES |
Nom Wgt Lbs (Kgs) |
Mounting | A-Length In (mm) |
B-Width In (mm) |
C-Depth In (mm) |
P5B2 | 25 (11.4) | Bolt-On | 24.0 (609) | 3.0 (76) | 1.25 (31) |
P7B2, ZHC-50 | 45 (20.5) | Bolt-On | 24.0 (609) | 4.0 (101) | 1.25 (31) |
ZMA 2204 | 36.5 (16.5) | Weld-On | 20.0 (508) | 4.0 (101) | 2.0 (50) |
ZMA 2244, ZHS-50 | 47 (21) | Weld-On | 24.0 (609) | 4.0 (101) | 2.0 (50) |
ZMA 3305 | 86.5 (39.3) | Weld-On | 30.0 (762) | 5.0 (127) | 3.0 (76) |
ZMA 3365 | 103 (46.8) | Weld-On | 36.0 (914) | 5.0 (127) | 3.0 (76) |
ZMA 4545 | 264 (120) | Weld-On | 54.5 (1384) | 4.5 (114) | 3.75 (95) |
PLATE ANODES | |||||
ZHC-2 | 2.5 (1.1) | Bolt-On | 5.75 (146) | 2.75 (70) | .75 (19) |
Z1, ZHC-23, | 23.0 (10.4) | Bolt-On | 12.0 (304) | 6.0 (152) | 1.25 (31) |
Z2, ZHS-23, ZMA 1126 | 23.5 (10.6) | Weld-On | 12.0 (304) | 6.0 (152) | 1.25 (31) |
ZHC-47 | 45 (20.5) | Bolt-On | 12.0 (304) | 6.0 (152) | 2.5 (64) |
ZHS-47 | 45 (20.5) | Weld-On | 12.0 (304) | 6.0 (152) | 2.5 (64) |
SEMI-STREAMLINED ZINC ANODES | |||||
Type No. | Nom Wgt Lbs (Kgs) |
Mounting | A-Length In (mm) |
B-Width In (mm) |
C-Depth In (mm) |
Z3 or ZSS | 10.3 (4.68) | Weld-On | 12.0 (304) | 3.0 (76) | 1.25 (31) |
Z4 | 5.0 (2.25) | Weld-On | 6.0 (152) | 3.5 (88) | 1.0 (25) |
Z6 | 3.0 (1.35) | Weld-On | 5.0 (127) | 2.5 (63) | 1.0 (25) |
Z19 | 22.0 (10.0) | Weld-On | 25.0 (635) | 3.125 (79) | 1.25 (31) |
ZC-5 | 5.0 (2.25) | Weld-On | 9.0 (228) | 2.25 (57) | 1.25 (31) |
ZC-7 | 7.0 (3.15) | Weld-On | 9.0 (228) | 2.25 (57) | 1.625 (41) |
Z3B | 10.3 (4.68) | Bolt-On | 12.0 (304) | 3.0 (76) | 1.25 (31) |
Z15B | 15.1 (6.85) | Bolt-On | 18.0 (457) | 3.0 (76) | 1.5 (38) |
HT1 | 5.0 (2.27) | Comb | 6.0 (152) | 3.0 (76) | 1.5 (38) |
Z26 | 26.0 (11.79) | Weld-On | 13.5 (343) | 4.5 (114) | 2.25 (57) |
STREAMLINED ZINC ANODES | |||||
Type No. | Nom Wgt Lbs (Kgs) |
Mounting | A-Length In (mm) |
B-Width In (mm) |
C-Depth In (mm) |
Z22 | 23.5 (10.65) | Weld-On | 14.0 (355) | 6.5 (165) | 1.5 (38) |
Marine zinc anodes are metal components used to protect boats and marine structures from corrosion caused by electrolytic reactions in saltwater. These anodes are made from zinc, which acts as a sacrificial metal, corroding in place of the more valuable components of your vessel, such as the hull or propeller.
A zinc anode rod is a specific type of anode designed to protect your boat’s metal parts from corrosion. When immersed in water, the zinc rod slowly corrodes instead of the boat’s critical parts. This process, known as galvanic protection, is essential for extending the life of your boat and its equipment.
Zinc is highly effective in preventing corrosion in marine environments, making it the preferred choice for boat owners in Canada and worldwide. It works particularly well in saltwater conditions, where metal components are most vulnerable to electrolytic corrosion. By using zinc anodes, you can significantly reduce maintenance costs and ensure the longevity of your marine equipment.
The frequency of replacement depends on factors such as the water conditions and how often the boat is used. As a general rule, it’s a good idea to inspect your zinc anodes at least once per season. If they are significantly worn down, they should be replaced to continue providing optimal protection against corrosion.
Marine anodes come in various shapes and sizes to fit different types of boats and marine applications. These include zinc anode rods, flat anodes, and propeller anodes. Zinc is the most common material used, but other materials like aluminum or magnesium may also be used depending on the water conditions and the specific needs of your vessel.
Yes, besides zinc anodes, there are also aluminum and magnesium anodes, which are commonly used in fresh or brackish water. Zinc anodes are generally the best option for saltwater environments, which is why they are widely used in marine applications across Canada.
Comments or questions are welcome.