ON SPECIAL REQUEST ONLY

VOLUME DISCOUNTS

• Significant volume discounts are available for this anode.
• For price quote, please call or email us with your quantity                                  requirements & delivery address

ZHC-42 bolt on commercial zinc anode: Used for tugs, barges and ships

6'x 12"x 2.85" , 42 lbs weight 

All zinc anodes are cut as per dimensions . These boat zincs are drilled for bolt-on attachment 6" center to center hole

Whether your boat is sailing in either fresh or sea water is inevitably exposed to the hazards of corrosion. This is why our zinc anodes weigh more than the competition, due to their higher quality and perform their cathodic protection job better.

Our zincs meet the standards set forth by Mil-Spec A-18001, Mil-Spec A-18001A, and Mil-Spec A-18001K.

Do your products meet Mil-Spec?

Yes!  Sacrificial anodes must be impurity-free to properly work, and all our anodes are made only from Mil-Spec alloys. Our zinc anodes are also compliant to ASTM B418 Type 1.  Our Aluminum anodes conform to Mil-Spec A-24779(SH)

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How much zinc do I need on my boat?

First, the larger the surface area of an anode, the higher its electrical current capacity and galvanic holding voltage.  For most boats, you want your anode surface area to be sufficient to maintain all underwater metals between -900 mV and -1100 mV relative to a silver/silver-chloride reference electrode.

Second, the longevity of a sacrificial anode is a function of its weight -- the greater the weight the longer its life.

Due to differences in water salinity, temperature, stray currents, and other external influences, you only know the right weight by actual trial.  Periodically inspect your zincs, and when they have corroded to under 50% their original weight they should be replaced.  To lengthen the replacement interval, increase the weight of zincs used.

We've designed hundreds of corrosion protection solutions for metal boats and underwater metal structures such as docks, boat lifts, and retaining walls.