C & I Enclosures Type 4 Painted J.I.C. Continuous Hinge Boxes are UL Listed for either indoor or outdoor use to provide a degree of protection against falling rain, splashing water, and hose-directed water; undamaged by the formation of ice on the enclosure. Fabricated in accordance with U.L. specifications from code gauge material. An oil resistant gasket is attached to the cover to prevent dust from entering the box.