Very helpful info, Melodica-Me. Thanks. I’ll see what is said on the can or accompanying instructions when I get the product I ordered. “Anodizing” may be strictly applicable only to aluminum, though there are analogous processes for other metals. I see that Liquid Glass is available on Amazon, and it looks like something I could use on my motorcycles. I have a Schoenhut 25 I got on sale for $15 for experimentation. I’ll experiment on a few of its reeds first.