Have you ever wondered where you can source quality zinc anodes?  If you have then look no further because is a web directory that can help you.  We offer a guide to the very best manufacturers of Zinc Sacrificial anodes within the UK.

This site is an extremely useful tool for purchasers and decision makers around the world because it provides them with accurate information collated from a team of experts whom have a wealth of experience from within Cathodic Protection.  We only list manufacturers, up to date foundries that are ISO 9001:2000 approved and have undergone electro chemical testing carried out by DNV.  We do not direct you the buyer to a middleman or the Anode Producer with suspect quality, this is not our remit and will therefore provide you with PEACE OF MIND before you make your decision to BUY. is informative and provides technical information for the consumer whether they are a company buyer, or a boat owner, looking to purchase zinc sacrificial anodes. Don’t be misled; Manufacturers will deal direct with the public at a trade counter via the internet.  This will avoid Wholesales and Chandlery mark ups and guarantees the anode quality because you have full traceability to the source of your anode.  From a company perspective it is always better to send larger enquiries to the supplier via the enquiry forms.  They do get looked at and you will more than likely receive a substantial discount. 

Cathodic Protection Suppliers

For both Public and Commercial Anode Sales

First choice for Zinc anodes should be from manufacturers such as MCPS Ltd and Z-Guard.

Members of the public should miss out the chandleries and go direct to Manufacturers shopping carts if they are available.

Buy Anodes Online
Buy Zinc Anodes On-line. Click here or on  Logo Below to Buy Zinc Anodes Online at Z-Guard


What does Corrosion Cost ?
Natural disasters cost the U.S. economy $17 Billion a year while corrosion costs the U.S. $276 Billion a year.  It is evident that all areas of industry do not put enough emphasis on corrosion control. 

The Basic of Cathodic Protection
Cathodic Protection is the partial or complete protection of a metal from corrosion by making it a cathode, connecting either a galvanic anode or an impressed current anode.  When cathodic protection is applied to a metal surface (cathode), the chemical reaction between the anode and cathode can form a scale or deposit which increases the electrical resistance and reduces the flow of current from the anode. Consequently, the current required to achieve cathodic protection initially is more than that required to maintain protection once polarisation has been achieved.

Competent Person
Design, installation, and testing of a cathodic protection shall be carried out under the direction of a ‘Competent Person’ in this field. The competent person shall have relevant qualifications from a recognised body such as the National Association of Corrosion Engineers (NACE), the Institute of Corrosion (ICorr), or equivalent.

Standard practice should be to utilise a specialist contractor, experienced in cathodic protection applications. If this is not possible or if the cathodic protection system forms part of a larger contract, the ‘Competent Person’ shall be involved by supervising, approving, or consulting continually during the contract.

Anode Specification
Zinc anodes should be cast from CLEAN special high grade zinc sometimes referred to as the four 9’s ie 99.99% Zn.  The performance of sacrificial anodes will greatly reduce and occasionally prevent it from working if the iron (Fe) content is above as little as 0.005%.  The internationally recognized specification for Zinc is US Mil Spec 18001 K and is as follows:

Zinc Anode Specification

U.S. -Mil-A-1800 1 K

 Al- 0.10 - 0.50%
 Cd- 0.025 - 0.07%
 Fe- 0.005% max.
 Cu- 0.005% max.
 Pb- 0.006% max.
 Others- 0.10% max.

 Zn-  min 99.314% 


 Efficiency: 95%
 Potential: -1.10V. Cu/CuSo.Ref.
 Capacity: 780 Ampere hours per kg
 Consumption: 11.2 kgs per Ampere year


It is always wise to ensure that anodes have full traceability and are each individually stamped with alloy melt numbers.  The melt number can be easily traced by the manufacturer to provide you with documentation containing full Chemical Analysis and electrochemical testing if required. 

Manufacturers Production and Inspection specifications should be in accordance with DNV RP B401 Jan 2005, NORSOK, NACE RP0387-99 or NACE RP0482-99 for bracelets anodes. 

Design specification should follow DNV RP B 401 Jan 2005, NORSOK, BS 7361 Part 1: 1991 or NACE RP0176-2003.