Porcerax II is a sintered, porous metal that is heat treated to 35-38 HRC with porosity in the range of 20 to 30% by volume. A system of interconnected pores with an average diameter of 7 (.0003"), or 20 (.0008") micron is dispersed throughout the Porcerax II material. Using Porcerax II in appropriate areas, eliminates gas buildup, reduces injection pressure, lowers cycle times, gloss levels and substantially reduces scrap and reject rates.