Two-shot molded vapor seal

A method of using an electrical box assembly, the method comprising:

• providing an electrical box assembly, the electrical box assembly comprising:
• a box structure comprising a closed end, an oppositely arranged open end, and an interior surrounded by at least one sidewall connecting the open end to the closed end;
• an opening formed in one of the at least one sidewall or the closed end of the box structure;
• and
• a door disposed within the opening and having an outward-facing surface and an inward-facing surface, wherein the door is formed from a resiliently flexible elastomeric material, wherein the inward-facing surface is planar in shape when extending across the opening, wherein the door includes an angled recess defined by at least two adjacent facets of the outward-facing surface oppositely inclined relative to the planar inward-facing surface and meeting at a frangible region of the door formed as an interior corner where the at least two adjacent facets of the outward-facing surface meet and where the door has a localized minimum thickness present between the outward-facing surface and the inward-facing surface;
• penetrating the door with a wire, the penetrating of the door including the wire entering the angled recess formed in the outward-facing surface of the door to press against and pierce the door along the frangible region, wherein the frangible region of the door being penetrated by the wire includes separation of a first facet of the at least two adjacent facets from a second facet of the at least two adjacent facets along the frangible region;
• and
• pushing a first length of the wire through the door and into the interior of the box structure to cause the first facet and the second facet to flex inwardly towards the interior of the box structure;
• and
• pulling a second length of the wire out of the box structure in a direction away from the interior thereof following the pushing of the first length of the wire through the door and into the interior of the box structure, wherein the pushing of the first length of the wire through the door and into the interior of the box structure includes the first facet and the second facet being flexed inwardly by the wire towards the interior of the box structure, and wherein the pulling of the second length of the wire out of the box structure in the direction away from the interior thereof includes a clamping force applied to an outer surface of the wire by the first facet and the second facet being increased as the first facet and the second facet are flexed outwardly to an inverted configuration extending away from the interior of the box structure beyond the corresponding sidewall or closed end of the box structure having the associated opening formed therein while engaging the outer surface of the wire, and wherein the increase in the clamping force applied to the outer surface of the wire is caused by a degree of compression of each of the first facet and the second facet increasing as the first facet and the second facet are inverted from flexing inwardly to flexing outwardly beyond the corresponding sidewall or closed end of the box structure having the associated opening formed therein while attempting to resiliently return to a configuration of the first facet and the second facet prior to penetration of the frangible region by the wire.

An electrical box assembly comprising:

• a box structure comprising a closed end, an oppositely arranged open end, and an interior surrounded by at least one sidewall connecting the open end to the closed end;
• an opening formed in one of the at least one sidewall or the closed end of the box structure;
• and
• a door disposed within the opening and having an outward-facing surface and an inward-facing surface, the door including an angled recess defined by at least two adjacent facets of the outward-facing surface meeting at a frangible region of the door, the at least two adjacent facets of the outward-facing surface including a first facet and a second facet, wherein the first facet and the second facet are arranged at different inclinations relative to a portion of the inward-facing surface of the door disposed opposite the angled recess the door configured to be penetrated at the frangible region thereof to provide access to the interior of the box structure, and wherein a first distance present between the frangible region and a first edge of the first facet disposed at the perimeter of the angled recess opposite the frangible region is less than a second distance present between the frangible region and a second edge of the second facet disposed at the perimeter of the angled recess opposite the frangible region.