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)
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.
UPS Ground Shipping
If you select UPS Ground as your carrier, you receive a Tracking Number that lets you monitor your shipment's progress at www.ups.com. Please note that UPS delivers Monday-Friday only and cannot deliver to PO boxes.
FedEx Ground Shipping
We offer FedEx Ground Shipping option upon request. For ALL California customer we only will ship FedEx due to logistic errors so please contact us via
email: michelle@thezincguy.com, by filling a contact form
or phone us at (754)223-2297 before placing your order.
USPS Priority Shipping
We ship via USPS Priority Mail, with delivery in 2-3 business days anywhere in the U.S., including Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands. PO boxes and military addresses are accepted. You'll receive a delivery confirmation via email once shipped.
The Zinc Guy Local Shipping
Need it fast? We offer same-day local delivery (within
radius)for urgent orders in the South Florida area. When timing matters, our team delivers directly-fast, reliable, and right to your door or dock!
