Summary for anodized aluminum waterproof Discussion
Anodized aluminum waterproofing is the core question here: Glenn E. Irick Sr. asks whether anodized aluminum is completely water proof, whether sealing can make it waterproof, and whether two anodized aluminum rods with only the anodized ends immersed in water would show any DC resistance between them. The thread excerpt provided contains only the question and does not include any expert replies, so no definitive answer is given in the source. Based on the wording of the question alone, the practical issue is whether the anodic oxide layer and any seal can prevent electrical conduction through water. Because no answer text is present, the archive page as shown does not establish a tested result, anodizing class, or sealing method.
Q. Is Anodized aluminum completely water proof. Can it be made waterproof by sealing. For instance, if I take two anodized aluminum rods and connect an electrode to each and place only the anodized ends in water, will there be any dc resistance between the rods? If this can be done, what would be the type anodizing used and its class?
Glenn E. Irick Sr.
Electronics Mfgr. – Knoxville, Tennessee, USA
2004