PEEK Bolts for Non-Conductivity / Galvanic Corrosion

Q: We are attaching steel to aluminum in a drainage pond application, and need to prevent electrolysis. The aluminum materials are degrading prematurely. Is there a non-conductive bolt that would work for this situation?

A: Your best bet is if you can use a polymer bolt like PEEK. PEEK bolts are non-conductive and strong providing 16,000 psi of ultimate tensile strength which should work with your aluminum pontoons. They also won’t degrade in pond water and could be used to isolate the steel and aluminum to avoid the galvanic corrosion you are experiencing.

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