TECNOSEAL is one of the leading global suppliers of anodes for cathodic protection in industries such as water recreation, shipbuilding, and maritime applications.
With over 30 years of experience, they manufacture anodes made of zinc, aluminum, and magnesium directly at their factory in Grosseto, Tuscany. Today, they offer the largest selection of anodes in the world: nearly 2,000 standard production anodes and over 3,000 custom-made products crafted to meet customer demands.
Fast deliveries of yacht equipment, calculation, selection of analogues and spare parts. Send us your request and we will contact you ASAP with a solution. We deliver in Cyprus, throughout Europe and worldwide. More than 10 years of experience.
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1-2 weeks delivery time Tecnoseal aluminium shaft collar sacrificial anodes for shaft installations, available in Limited Clearance, Medium Size and Large Size configurations. The range includes metric and imperial shaft sizes from 19 mm / 3/4" up to 140 mm, with collar heights from 18 to 40 mm, overall diameters from Ø61 to Ø225 mm and weights from 0.02 to 2.20 kg. Compact Limited Clearance versions cover shaft sizes from 19 mm / 3/4" through 50 mm, including 7/8", 1", 1-1/8", 1-1/4" and 1-1/2" options. Additional medium and large aluminium versions are available for 60, 70, 75, 100, 120 and 140 mm shafts. Select the required model according to shaft size, collar height, overall diameter and weight. |
$ 14.28
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1-2 weeks delivery time Tecnoseal magnesium Limited Clearance shaft collar sacrificial anodes for shaft installations where a compact collar profile is required. The range includes fourteen models for metric and imperial shaft sizes from 19 mm / 3/4" up to 50 mm / 1-1/2", with weights from 0.05 to 0.15 kg. Available versions feature heights from 18 to 25 mm, overall diameters from Ø61 to Ø85 mm and internal shaft diameters from 19 to 50 mm. Metric versions are available for 20, 25, 30, 35, 40, 45, 48 and 50 mm shafts, together with 3/4", 7/8", 1", 1-1/8", 1-1/4" and 1-1/2" imperial configurations. Select the required model according to shaft size, overall diameter, collar height and weight. |
$ 19.05
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1-2 weeks delivery time Tecnoseal zinc Standard Type shaft sacrificial anodes for marine shaft installations, available for shaft sizes from 19 mm / 3/4" up to 90 mm and including both metric and imperial configurations. The range includes models with 2 fastening holes for shaft sizes from 19 mm through 2" / 50.8 mm, and larger models with 4 fastening holes for shafts from 55 to 90 mm. Depending on the model, anode height ranges from 56 to 113 mm, overall diameter from Ø58 to Ø137 mm and weight from 0.41 to 3.65 kg. Bolts and nuts are available on request. Select the required model according to shaft diameter, overall dimensions, fastening-hole configuration and weight. |
$ 30.72
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1-2 weeks delivery time Tecnoseal magnesium Standard Type shaft sacrificial anodes for marine shaft installations, available for metric and imperial shaft sizes from 19 mm / 3/4" up to 80 mm. The range includes models with 2 fastening holes for shaft sizes from 19 mm through 2" / 50.8 mm, and larger models with 4 fastening holes for shafts from 55 to 80 mm. Depending on the model, anode height ranges from 56 to 110 mm, overall diameter from Ø58 to Ø128 mm and magnesium anode weight from 0.09 to 0.69 kg. Bolts and nuts are available on request. Select the required Tecnoseal model according to shaft diameter, overall dimensions, fastening-hole configuration and weight. |
$ 27.12
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1-2 weeks delivery time Tecnoseal zinc Barrel Type shaft sacrificial anodes for marine shaft installations, manufactured with 4 fastening holes. The range includes nine models for shaft diameters from 95 to 130 mm, with anode weights from 5.10 to 15.20 kg. Depending on the model, heights range from 114 to 156 mm and overall diameters from Ø142 to Ø180 mm. Bolts and nuts are available on request. Select the required Tecnoseal model according to shaft diameter, anode height, overall diameter and weight. |
$ 297.96
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1-2 weeks delivery time Tecnoseal zinc Light Type shaft sacrificial anodes for marine shaft installations, available in five metric and imperial shaft configurations from 19 mm / 3/4" to 28 mm. All models feature 2 fastening holes, a 40 mm height and Ø50 mm overall diameter, with shaft openings from 19 to 28 mm and weights from 0.22 to 0.31 kg. The range includes Tecnoseal 00500L for 19 mm / 3/4" shafts, 00501L for 7/8" shafts, 00502L for 25 mm shafts, 00503L for 1" shafts and 00504L for 28 mm shafts. Bolts and nuts are available on request. Select the required model according to shaft diameter and anode weight. |
$ 25.99
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1-2 weeks delivery time Tecnoseal zinc UK Type shaft sacrificial anodes for marine shaft installations, available in metric and imperial shaft configurations from 19 mm / 3/4" up to 50 mm. The range includes thirteen models with shaft openings from 19 to 50 mm, heights from 65 to 100 mm, overall diameters from Ø56 to Ø85 mm and weights from 0.56 to 2.47 kg. Available imperial configurations include 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-1/2" and 1-3/4". Bolts and nuts are not included. Select the required Tecnoseal model according to shaft size, height, overall diameter and weight. |
$ 70.56
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1-2 weeks delivery time Tecnoseal aluminium UK Type shaft sacrificial anodes for marine shaft installations, available in metric and imperial shaft configurations from 19 mm / 3/4" up to 50 mm. The range includes thirteen models with shaft openings from 19 to 50 mm, heights from 65 to 100 mm, overall diameters from Ø56 to Ø85 mm and aluminium anode weights from 0.22 to 0.952 kg. Imperial shaft options include 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-1/2" and 1-3/4". Bolts and nuts are not included. Select the required model according to shaft size, height, overall diameter and weight. |
$ 51.08
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1-2 weeks delivery time Tecnoseal magnesium UK Type shaft sacrificial anodes for marine shaft installations, available in six metric and imperial shaft configurations from 19 mm / 3/4" up to 30 mm. All models have a height of 65 mm and an overall outside diameter of Ø56 mm, with shaft openings from 19 to 30 mm. The range includes 3/4", 7/8", 1" and 1-1/8" imperial versions together with 25 mm and 30 mm metric sizes, with listed magnesium anode weights from 0.01 to 0.18 kg. Bolts and nuts are not included. Select the required model according to shaft size, Ø1 opening and weight. |
$ 61.91
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1-2 weeks delivery time Tecnoseal aluminium USA Type shaft sacrificial anodes for marine shaft installations, available in metric and imperial shaft sizes from 19 mm / 3/4" up to 76.20 mm / 3". The range includes compact models with 2 fastening holes and larger versions with 4 fastening holes. Depending on the model, weights range from 0.14 to 1.25 kg, heights from 51 to 102 mm and overall diameters from Ø54 to Ø122 mm. Available shaft sizes include 19, 25, 28, 30, 35, 40, 45, 48, 50 and 60 mm together with 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-1/2", 1-3/4", 2", 2-1/4", 2-1/2", 2-3/4" and 3" configurations. Bolts and nuts are available on request. Select the required version according to shaft size, fastening configuration, height, overall diameter and weight. |
$ 21.73
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1-2 weeks delivery time Tecnoseal zinc USA Type shaft sacrificial anodes for marine shaft installations, available for shaft sizes from 19 mm / 3/4" up to 6-1/2" / 165 mm. The range includes metric and imperial shaft configurations with 2 fastening holes on models up to 00514USA and 4 fastening holes on larger models from 00516USA onward. Depending on model, anode height ranges from 51 to 102 mm, overall diameter from Ø54 to Ø209 mm and weight from 0.36 to 6.35 kg. USA reference designations include X-1 to X-22 and D-series references for selected metric sizes. Bolts and nuts are available on request. Select the required version according to shaft size, Ø1 opening, overall dimensions, fastening-hole configuration and weight. |
$ 37.59
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1-2 weeks delivery time Tecnoseal magnesium USA Type shaft sacrificial anodes for marine shaft installations, available for shaft sizes from 19 mm / 3/4" up to 60 mm and including both metric and imperial configurations. The range includes compact 2-fastening-hole models from 00500USAMG through 00514USAMG, plus the larger 00517USAMG version with 4 fastening holes. Depending on the model, anode height ranges from 51 to 102 mm, overall diameter from Ø54 to Ø107 mm and magnesium anode weight from 0.09 to 0.65 kg. Bolts and nuts are available on request. Select the required model according to shaft size, overall dimensions, fastening configuration and weight. |
$ 27.12
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1-2 weeks delivery time The Tecnoseal 03500 Series is a Vetus propeller nut anode for KGF125/130/160, also suitable for Twin Disc – BCS thrusters, with original part reference BP195E/SET151. Both versions have identical dimensions: Ø60 mm overall diameter, 42 mm overall height (h1), 17 mm height (h), 24 mm dimension (a), Ø6.50 mm, Ø30 mm and Ø12 mm internal diameters. Available as Zinc 03500 weighing 0.48 kg or Magnesium 03500MG weighing 0.12 kg. |
$ 39.47
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1-2 weeks delivery time The Tecnoseal 03501 Series is a BCS conical propeller anode with stainless steel insert, available in Zinc, Aluminium and Magnesium versions. All variants have the same dimensions: 55 mm height, Ø68 mm overall diameter, Ø56 mm base diameter and Ø6.50 mm central diameter. The material variants differ in weight: Zinc 03501 – 0.64 kg, Aluminium 03501AL – 0.26 kg, and Magnesium 03501MG – 0.16 kg. |
$ 60.84
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1-2 weeks delivery time The Tecnoseal 03502 is a zinc Vetus plate anode for KGF23A/50/80, also suitable for Twin Disc – BCS thrusters, with original part reference BP 129/SET153. It weighs 0.07 kg (0.15 lbs) and measures 41 mm in length (l), 20 mm in width (a), 17 mm (b), 24 mm in height (h), 17 mm (h1), with a Ø6.50 mm mounting hole. |
$ 34.05
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1-2 weeks delivery time The Tecnoseal 03505 is a zinc Vetus propeller nut anode for KGF25, corresponding to original part number BP-1221 / SET0148. It weighs 0.04 kg (0.09 lbs) and measures 10 mm in height, with 38 mm overall diameter, 29 mm dimension (i), Ø32 mm, Ø17 mm and Ø4.50 mm mounting holes. |
$ 58.15
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1-2 weeks delivery time The Tecnoseal 03506 is a zinc Vetus propeller nut anode for KGF35/45/55, corresponding to original part number BP-1126 / SET0149. It weighs 0.15 kg (0.33 lbs) and measures 17 mm in height, with 50 mm overall diameter, 37 mm dimension (i), Ø43 mm, Ø15 mm and Ø5.50 mm mounting holes. |
$ 68.93
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1-2 weeks delivery time The Tecnoseal 03507 is a zinc Vetus propeller nut anode for KGF60/75/80/95, corresponding to original part number BP-1185 / SET0150. It weighs 0.15 kg (0.33 lbs) and measures 15 mm in height, with 56 mm overall diameter, 40 mm dimension (i), Ø44 mm, Ø15 mm and Ø5 mm mounting holes. |
$ 76.11
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What is the role of a Tecnoseal anode in protecting a boat's hull from corrosion?
Tecnoseal anodes play a critical role in protecting a boat's hull from corrosion through the use of sacrificial anodes for cathodic protection. These anodes, made from aluminum and magnesium, act as a "sacrificial" layer that corrodes in place of the boat's hull and engine components, preserving their integrity in marine environments. As one of the world’s leading suppliers of sacrificial anodes, Tecnoseal ensures top-quality protection for both leisure boats and larger ships.
For high-quality corrosion prevention, explore our Anodes for Aluminium Boats, designed to ensure long-lasting marine protection.
What are the differences between aluminum and magnesium anodes in terms of their application on boats?
Aluminum and magnesium anodes serve different purposes based on the type of water where boats operate. Magnesium anodes are more active and are best suited for freshwater environments, offering high-quality cathodic protection by corroding faster than aluminum. Aluminum anodes, on the other hand, are more commonly used in saltwater and brackish water, as they provide long-lasting protection for boats in harsher marine environments, making them ideal for a wide range of leisure and naval applications.
How does zinc protect a boat's hull from corrosion in saltwater environments?
Zinc anodes, produced by Tecnoseal foundry, offer essential cathodic protection to a boat's hull in saltwater environments. By acting as sacrificial anodes, zinc absorbs the corrosive effects of seawater, protecting the boat’s hull and other metal components. Tecnoseal, with a wide range of anodes specifically designed for the leisure boat market, produces and supplies high-quality zinc anodes that meet the needs of both recreational and commercial vessels, ensuring long-lasting protection against corrosion.