We Believe in Chemistry Done Better, For a Better Future. Established in 1960, we have earned a reputation for excellence founded on a commitment to cutting-edge chemistry, meaningful service, and innovative solutions. Guardian Chemicals is recognized as one of the leading specialized chemical suppliers of over 220 products for multiple applications because we take the time to send our industry experts on-site to understand your challenges. We don’t simply develop solutions and applications that work—we also constantly test to discover product and process improvements, and make sure we are delivering beyond the expectations of all stakeholders.