Nadiso® Storage Series (Acid, Flammable, Hazardous) are constructed of sturdy 1,2 & 2 mm thickness double wall and welded steel with insulating air space for fire resistance. The Storage is high Performance with self-latching system that make doors close easily and provide air insulation that gives maximum protection under fire condition. Durable lead-free epoxy/polyester powder coat of the cabinet finish provide high chemical resistance. Manual close doors open to a full 180 degrees and self-latches when pushed close.