What’s the right cabinet for storing strong acids and alkalis in your lab? It sounds like a simple question, but getting it wrong can lead to serious consequences — corroded metal cabinets, chemical leaks, safety incidents. None of these are things you want to deal with.PP (polypropylene) corrosive storage cabinets have become the go-to choice for laboratories and industrial facilities that handle aggressive chemicals. The 90-gallon size, in particular, hits a sweet spot — large enough capacity, reasonable footprint, and it’s often the first spec procurement managers look at. This guide breaks down the key things you need to consider when selecting a 90-gallon PP acid and alkali cabinet, based on real-world selection experience rather than marketing fluff. 1. Why PP Material for Corrosive Storage? Here’s the bottom line: for strong acids and alkalis, PP is the most reliable material available. Period. PP (polypropylene) has excellent chemical resistance. It tolerates most strong acids and bases without degrading — sulfuric acid, hydrochloric acid, nitric acid, sodium hydroxide, you name it. Store them in a PP cabinet and the cabinet won’t be affected. Compare that to traditional metal cabinets — even epoxy-coated steel ones. Prolonged exposure to strong acids and alkalis causes the…