A: Our e-commerce site is implemented on Yahoo! owned and operated computer systems. Over the past ten years, Yahoo! has
become the Internet's leading on-line business services company. Your credit card information
is sent encrypted to their computers from your browser via HTTPS. After your order is processed, no credit card information is retained by either Yahoo! or BoatZincs.com.
A: Yes, we accept debit cards for purchases online. However, please be aware of the following limitations imposed by your debit card issuer as explained by the Federal Trade Commission:
"Customers who use debit cards for on-line transactions will find that when they place their order, their debit card is “authorized/blocked” for the exact amount of the transaction. When the vendor ships the order, the customer’s debit card is credited with the sale. The authorize/block is a common banking procedure. It may look like two separate transactions if you view your debit card account on-line immediately after the vendor ships your order. These two transactions most likely will resolve themselves in a day or two and the initial authorized/blocked amount will disappear. Sometimes, it may take up to 15 days, especially if you changed your order after placing it and the credited amount is different. If you have limited funds in your checking account, overdrafts may occur."
A: You’re probably wondering “How can you charge so much less?” than other marine product stores and still be in business, right?
First of all, we sell only boat anodes. We specialize in the distribution of just one type
of marine product. We know boat anodes A to Z.
This product knowledge makes us very customer-responsive and cost-efficient.
Need an anchor for your boat? Well, go back to Google.
Second, we buy tons of boat anodes. They arrive at our shipping dock transported
on tractor trailer trucks dispatched from the foundries. We use our volume
purchasing power to get you the lowest possible prices.
And, third, we run a tight ship. We spend our marketing budget carefully to ensure
every advertising dollar pays for itself. We streamline our order processing system
by asking you to enter your own order (thanks!). And we don't waste money on
unnecessary things like mailing out product catalogues.
The result... We're proud to tell you we're a small but profitable company that
expects to be in business for many years to come. This is due to having value-
conscious customers like you.
We’re passionate about our boat anode business and we hope it shows.
A: Yes, we are a store in the literal sense. We maintain an extensive physical inventory of every product we sell (except Commercial Anodes which ship direct from our foundries) so that we can ship immediately to you. Should we run out of a particular item, we immediately list it on our website. If you have any questions or concerns about our ability to ship your order, call us at 978-841-9978.
A: United Parcel Service (UPS) specializes in the reliable delivery of packages like ours. Late 2004, the United States Postal Service (USPS) introduced a package delivery service called ‘Priority Mail Flat Rate Box’ that many of our customers find attractive.
As to which carrier to use – it’s your choice, not ours (unless of course you place an order over $100 with free shipping - then we ship the fastest and most economical way). During checkout, you can compare the shipping fees. Here are the pros and cons of each service as we see them:
+ Long history of reliable package deliveries
+ Often less expensive for orders going less than 1,000 miles
+ Often less expensive for orders over $100.00
+ Late-day ordering (pick-up at 5:00 PM ET)
+ Online tracking of packages at www.ups.com
– No Saturday deliveries (M-F only)
- No PO Box deliveries
USPS Priority Mail Flat Rate Box
+ Often less expensive for orders under $100.00 and going over 1,000 miles
+ Often faster delivery for orders going over 2,000 miles
– New parcel service implemented by letter carriers
– Restrictive packaging -- only a few different box sizes permitted
– Harder to track package until it is delivered
A: Yes! Sacrificial anodes must be impurity-free to properly work, and all our anodes are made only from Mil-Spec alloys. Click here to learn more about the importance of Mil-Spec A-18001K for corrosion protection of your boat. Our zinc anodes are also compliant to ASTM B418 Type 1. Our Aluminum anodes conform to Mil-Spec A-24779(SH), and our Magnesium anodes conform to Mil-Spec A-21412(SH).
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
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.
If you have a steel or aluminum hull vessel that operates in salt water, use our Calculation Formula and/or give us a call. We've designed hundreds of corrosion protection solutions for metal boats and underwater metal structures such as docks, boat lifts, and retaining walls.
A: The best way is to measure it. With a silver/silver chloride reference electrode it
is relatively easy to get highly accurate voltage readings from all your underwater
metals and determine if they are corroding or not. Learn more here.Close
A: Make sure your anodes have good physical and electrical connections. An anode with a poor electrical connection cannot provide corrosion protection. Clean the area where you anode will be mounted by lightly sanding or wire brushing. Also, do not paint your anodes as they cannot perform unless exposed to water. Covering
anodes with bottom paint renders them useless.
A: Your choice of anodes requires consideration of three issues:
The kinds of underwater metals on your boat (e.g., stainless steel, bronze,
aluminum, mild steel);
The kinds of water you operate your boat in (e.g., salt, brackish and/or
If your boat can galvanically couple to other boats around it (i.e., connected
to AC shorepower without a galvanic isolator).
For vessels with AC shorepower connections and no galvanic isolation, use Chart A (pdf). For vessels with no AC shorepower connections, or AC shorepower
connections with galvanic isolation, use Chart B (pdf).
A: The purpose of a bonding system is to ensure that metals on your boat are at the
same voltage potential. This provides two major benefits:
electrical safety for the above water metals, and
corrosion protection for the underwater metals.
When bonded, underwater metals cannot be damaged by stray electrical currents
originating from within the boat (e.g., a defective bilge pump, float switch or wire
splice). When the bonding system is then connected to sacrificial anodes, all bonded
underwater metals are protected against galvanic corrosion.
A: When your boat is on dry land, it’s simple. Use a digital ohmmeter with very long
leads. Connect one lead to any ‘underwater’ metal in your bonding system (e.g, hull
zinc anode). Then successively connect the other lead to each and every other
underwater metal connected to your bonding system and verify a reading of 1 ohm or
less (ideally a perfect circuit near 0.01 ohm.) Do not include the resistance of the
ohmmeter leads themselves.
A: The hard scale commonly found on the surface of zinc anodes is Zinc Carbonate (ZnCO3). Carbonate (CO3) occurs in all bodies of water and originates from atmospheric carbon dioxide gas (CO2) naturally dissolving into the water. In general you do not need to be concerned about this scale as it only affects the maximum output amperage of the anode, not the anode’s required trickle output necessary to maintain effective corrosion protection. Zinc Carbonate is water insoluble, but can be readily removed by either alkalies or acids.