POR-15 soaked deep into your threads and broke up rust, leaving a clean area guiding. Similar to other rust removers, it darkens because it dissolves, turning black the greater you employ it. When you don't brain taking a number of safety measures even though using this solution, it works https://titusqiync.diowebhost.com/83375103/rebar-rust-things-to-know-before-you-buy