I've recently started anodizing parts in shop (in very small volume atm) with a decent level of success. I am, however, having the occasional problem. The last batch I made ran into some cosmetic issues after sealing in a nickel acetate solution. After I took the parts out, I observed a white powdery build up on about half of my parts. After I brushed it off, the parts were discolored as can be seen in this photo. photo (1).JPG
I know that this is sealant bloom and have been able to buff out the markings. Still, I'd like to dial in my process so that I don't need to do any hand finishing after anodizing. I've read that soaking the parts in nitric acid will remove the bloom; does anyone have experience with this?
Does anyone have any recommendation for simply preventing bloom while sealing?
I know that this is sealant bloom and have been able to buff out the markings. Still, I'd like to dial in my process so that I don't need to do any hand finishing after anodizing. I've read that soaking the parts in nitric acid will remove the bloom; does anyone have experience with this?
Does anyone have any recommendation for simply preventing bloom while sealing?