Sure-Grip Ex Corrosives/Acid Steel Safety Cab, 90 Gal, 2 S/C DrJustrite Sure Grip Ex Corrosives Acid Steel Safety Cabinet 90 gal. Self Closing Doors Justrite blue steel safety cabinets for corrosives have the same quality safety features as the cabinets for flammables. All models come with double wall construction, dual vents, grounding wire connections, adjustable shelves, leakproof sills, three point self latching doors, and leveling feet. Self close door(s) shuts and latches automatically when a fusible link