Masonflex Neoprene connectors are all designed with multiple plies of DuPont Kevlar® tire cord and Neoprene reinforcement. They are molded in hydraulic rubber presses where high pressure air bags expand inside the preforms to force the carcasses against the mold walls.

The molds are held between heated platens, so vulcanization takes place in the press. The tube reinforcement and cover fuse with the reinforcement layers to make the construction homogenous. Thus wall sections are lighter with higher ratings in these truly flexible connectors and expansion joints.