Mold device for injecting a fluid into a container, said mold device comprising: a first mold portion having a first mating surface; a second mold portion being movable relative to said first mold portion and having a second mating surface, said second mating surface being shaped complementary to said first mating surface for engagement therewith; a mold cavity disposed within said first mold portion and said second mold portion; and an interlocking mating surface system disposed between or made a part of said first mold portion and second mold portion to align said first mold portion with said second mold portion in at least a first direction wherein said interlocking mating surface system comprises a first feature extending from said first mold portion and a corresponding second feature complementary to said first feature formed in said second mold portion, said first feature being sized to closely conform to said second feature to align said first mold portion and said second mold portion in at least said first direction; said first feature matingly engaging said second feature to define a mated connection, wherein said mated connection defines a fluid seal engagement and wherein said fluid seal engagement extends about at least a portion of said first mold portion and said second mold portion to define a sealed internal volume for collecting a fluid; the mold device being characterized in comprising a first channel extending along said first mating surface and said second mating surface, said first channel being suitable for collecting and fluidly communicating a fluid from said mold cavity to a predetermined location. a first mold portion having a first mating surface; a second mold portion being movable relative to said first mold portion and having a second mating surface, said second mating surface being shaped complementary to said first mating surface for engagement therewith; a mold cavity disposed within said first mold portion and said second mold portion; and an interlocking mating surface system disposed between or made a part of said first mold portion and second mold portion to align said first mold portion with said second mold portion in at least a first direction wherein said interlocking mating surface system comprises a first feature extending from said first mold portion and a corresponding second feature complementary to said first feature formed in said second mold portion, said first feature being sized to closely conform to said second feature to align said first mold portion and said second mold portion in at least said first direction; said first feature matingly engaging said second feature to define a mated connection, wherein said mated connection defines a fluid seal engagement and wherein said fluid seal engagement extends about at least a portion of said first mold portion and said second mold portion to define a sealed internal volume for collecting a fluid; the mold device being characterized in comprising a first channel extending along said first mating surface and said second mating surface, said first channel being suitable for collecting and fluidly communicating a fluid from said mold cavity to a predetermined location.