Tecnoseal is a leading manufacturer of marine anodes, offering a wide range of products designed to protect boats and marine equipment from corrosion through cathodic protection. Tecnoseal produces zinc, aluminum, and magnesium anodes, making them suitable for various types of water environments, including salt, brackish, and fresh water. Sacrificial anodes are used on boat hulls, propellers, shafts, and engines to prevent corrosion, extending the life of vital components. Tecnoseal's products are widely recognized in the leisure and commercial marine markets for their high quality and reliability.
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1-2 weeks delivery time Tecnoseal zinc Radice hexagonal-type propeller sacrificial anodes for fixed pitch propeller installations, supplied as replacement anodes only. The range includes nine models for shaft sizes from Ø22–25 mm up to Ø70/100 mm, with weights from 0.12 to 2.58 kg. Available versions range from 39 to 98 mm in height and from Ø33 to Ø97 mm in overall diameter, with individual c, Ø1 and Ø2 dimensions for replacement matching. Select the required model according to shaft size, anode dimensions and weight.
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$ 12.81
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1-2 weeks delivery time Tecnoseal aluminium Radice hexagonal-type propeller sacrificial anodes for fixed pitch propeller installations, supplied as replacement anodes only. The range includes nine models for shaft sizes from Ø22–25 mm up to Ø70/100 mm, with weights from 0.05 to 1.01 kg. Available versions range from 39 to 98 mm in height and from Ø33 to Ø97 mm in overall diameter, with individual c, Ø1 and Ø2 dimensions for replacement matching. Select the required model according to shaft size, anode dimensions and weight.
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$ 6.74
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1-2 weeks delivery time Tecnoseal magnesium Radice hexagonal-type propeller sacrificial anodes for fixed pitch propeller installations, supplied as replacement anodes only. The range includes nine models for shaft sizes from Ø22–25 mm up to Ø70/100 mm, with weights from 0.03 to 0.65 kg. Available versions range from 39 to 98 mm in height and from Ø33 to Ø97 mm in overall diameter, with individual c, Ø1 and Ø2 dimensions for replacement matching. Select the required model according to shaft size, anode dimensions and weight.
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$ 14.80
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1-2 weeks delivery time Tecnoseal zinc Radice hexagonal-type propeller sacrificial anodes for fixed pitch propeller installations, supplied complete with a brass plug. The range includes standard and non-standard configurations for shaft sizes from Ø22–25 mm up to Ø70/100 mm, with weights from 0.27 to 6.90 kg. Standard versions use the corresponding metric brass plug thread, while non-standard versions include alternative metric threads, Whitworth threads and Ø hole configurations. Available models range from 18 to 46 mm in h dimension, 18 to 54 mm in h1 dimension and from Ø37 to Ø100 mm in overall diameter. Select the required version according to shaft size, m configuration, dimensions and weight.
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$ 77.65
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1-2 weeks delivery time Tecnoseal magnesium Radice hexagonal-type propeller sacrificial anodes for fixed pitch propeller installations, supplied complete with a standard brass plug. The range includes nine models for shaft sizes from Ø22–25 mm up to Ø70/100 mm, with weights from 0.21 to 4.08 kg. Available versions range from 19 to 45 mm in h dimension, 18 to 54 mm in h1 dimension and from Ø37 to Ø100 mm in overall diameter. Standard brass plug thread sizes range from 16x1.5 to 50x3 depending on model. Select the required version according to shaft size, thread size, dimensions and weight.
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$ 200.84
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1-2 weeks delivery time Tecnoseal stainless steel washers for fastening Radice propeller anodes, available in nine sizes for shaft diameters from 22–25 mm up to 70–100 mm. The range includes washers with Ø1 outside diameters from 38 to 100 mm, Ø2 dimensions from 16 to 50 mm and c dimensions from 6 to 20 mm. Weights range from 0.005 to 0.05 kg. Select the required washer according to shaft size and Ø1, Ø2 and c dimensions.
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$ 7.57
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1-2 weeks delivery time Tecnoseal zinc NACA-profile shaft collar sacrificial anodes, available in nine sizes for shafts from 19 to 35 mm, including metric and imperial shaft configurations. All models have a height of 25 mm, with outside diameters of Ø55 or Ø66 mm depending on size. The range covers Ø1 shaft openings from 19 to 35 mm and zinc anode weights from 0.22 to 0.32 kg. Select the required model according to shaft diameter, outside diameter and weight.
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$ 22.18
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1-2 weeks delivery time Tecnoseal aluminium NACA-profile shaft collar sacrificial anodes, available in nine sizes for shafts from 19 to 35 mm, including metric and imperial shaft configurations. All models have a height of 25 mm, with outside diameters of Ø55 or Ø66 mm depending on size. The range covers shaft openings from 19 to 35 mm and aluminium anode weights from 0.07 to 0.12 kg. Select the required model according to shaft size, outside diameter and weight.
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$ 17.88
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1-2 weeks delivery time Tecnoseal magnesium NACA-profile shaft collar sacrificial anodes, available in nine configurations for shaft sizes from 19 to 35 mm, including metric and imperial shaft dimensions. All models have a height of 25 mm, with outside diameters of Ø55 or Ø66 mm depending on size. Shaft openings range from 19 to 35 mm, while magnesium anode weights range from 0.06 to 0.10 kg. Select the required model according to shaft size, outside diameter, shaft opening and weight.
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$ 21.14
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1-2 weeks delivery time Tecnoseal zinc shaft collar sacrificial anodes available in Limited Clearance, Slim, Medium and Large Size configurations for shaft diameters from 19 mm / 3/4" up to 360 mm. The range includes metric and imperial shaft sizes, with collar heights from 18 to 60 mm, overall diameters from Ø61 to Ø511 mm and weights from 0.21 to 49.40 kg. Available models include compact collars for 19–50 mm shafts, medium-size versions for shafts up to 95 mm and large collars for shaft diameters from 100 to 360 mm. Select the required Tecnoseal model according to shaft diameter, overall collar diameter, height and weight.
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$ 16.59
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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.
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$ 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.
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$ 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.
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$ 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.
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$ 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.
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$ 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.
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$ 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.
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$ 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.
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$ 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.
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$ 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.
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$ 21.73
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What is the purpose of using Tecnoseal anodes on a boat hull and propeller?
Tecnoseal anodes serve the critical purpose of providing cathodic protection to a boat's hull and propeller by preventing corrosion through the use of sacrificial anodes. As one of the leading manufacturers in the world, Tecnoseal offers a wide range of anodes, including zinc, aluminum, and magnesium, designed specifically for different boating conditions. Their extensive catalog includes options for a variety of marine applications, from outboards to bow thrusters, ensuring maximum protection and performance.
For enhanced corrosion protection, explore our Anodes for Aluminium Boats, designed to safeguard your vessel’s hull and underwater components.
What are the main differences between zinc, magnesium, and aluminum anodes in the Tecnoseal range for boat protection?
In the Tecnoseal range, zinc, magnesium, and aluminum anodes serve different purposes based on water type. Zinc anodes are best Boat Anodes For Saltwater, while magnesium is ideal for freshwater use, offering more active protection. Aluminum anodes, being more versatile, can be used in both salt and brackish water, providing longer-lasting protection. Tecnoseal, one of the leading suppliers of sacrificial anodes, manufactures a wide range of these anodes to cater to various boat types and environments.
How do stern anodes differ from outboard anodes in the Tecnoseal range?
Stern anodes in the Tecnoseal range are designed to protect the metal components of the stern area, such as the stern drive, from corrosion, while outboard anodes are specifically engineered to safeguard the outboard engine parts, like the propeller and lower unit. Both types of anodes act as sacrificial anodes for cathodic protection, with Tecnoseal offering a wide range to fit various brands to ensure long-term protection in the leisure boat market.