Protecting Marine Vessels with Quality Anodes & Paints

MG Duff Anodes

MG Duff has been at the forefront of marine cathodic protection, including sacrificial anodes, since the early 1950s. The company continues to be one of the largest suppliers of systems and services to the marine market in the UK and throughout the world. Their involvement in corrosion control spans all aspects of the marine sector, from the leisure boat market and commercial deep-sea shipping to coastal and shoreline structures such as piling, jetties, lock and dock gates, linkspans, and pontoon systems.

MG Duff has an experienced technical department and offers full design services and technical support as well as providing the most comprehensive range of sacrificial anodes and impressed current cathodic protection systems.

Prices correct as of 1st October 2017. All prices are +VAT.

Specification Code Composition Aluminium Alloy X 
Iron Fe 0.12 Max
Silicon Si 0.05 - 0.15
Copper Cu 0.003 Max
Zinc Zn 3.0 - 6.0
Indium In 0.015 - 0.030 Max
Mercury Hg 0.001 Max
Titanium Ti 0.025 Max
Others Each   0.02 Max (<0.1 Total)
Aluminium Al Remainder
Potential Ag/AgCl   -1.05 V
Capacity- Amp.hr/kg   Typically 2500
Specification Code Composition Magnesium Alloy High Purity 
Copper Cu 0.08
Aluminium Al 5.3 - 6.7
Silicon Si 0.3 Max
Iron Fe 0.005 Max
Manganese Mn 0.25 Min
Nickel Ni 0.003 Max
Zinc Zn 2.5 - 3.5
Lead Pb 0.03
Magnesium Mg Remainder
Potential Ag/AgCl   -1.5 V
Capacity- Amp.hr/kg   1230
Specification Code Composition Zinc Alloy US Mil Spec 18001K
 Iron  Fe 0.005 Max
 Cadmium  Cd 0.025 - 0.07
 Copper  Cu 0.005 Max
 Aluminium  Al 0.10 - 050
 Lead  Pb 0.006 Max
 Others Total   0.10 Max
 Zinc  Zn Remainder
 Potential Ag/AgCl   -1.05 V
 Capacity- Amp.hr/kg   780

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