Hey, I was wondering if anyone else has used a product called Lume Brite? I did a search on Yahoo and a company in GA came up and the wording looks very similar to the HF that Sunbrite sells. It's a HF and Sulfuric blend. It says it can be metered at up to 100:1. I'm gonna try to get the MSDS tomorrow. The local person that I bought it from said he uses it as strong as 10:1 for brightening unpainted aluminum, I was wondering what strength to use as far as 2 stepping. I plan on using the ATLAS Truck Wash, non-caustic as the second step. How do you all think that will work? Do any of you all use a caustic second step? I was wondering how that would work, something like the Panel Bright or Brown Derby. Thanks for the help.