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.

MG Duff Yacht & Powerboat 6.0 Catalogue (4MB)
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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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