Maracay, Venezuela. Caura Futures’ innovative fuel tank has finally seen the light of day. Its design challenged the blow molding shop due to the tank’s unique nesting shape. In the blow molding process, a hot-extruded high density polyethylene (HDPE) sleeve is pinched off inside the mold and expanded forcefully with a burst of pressurized air. In tests using our mold, the corners of the blown tank were too thin. To correct this problem, the extrusion die had to be ovalized, which resulted in more material reaching the corners. ...more