Spoilboard gasket tile system for increased work-hold vacuum pressure

A vacuum-pressure-improving, spoilboard tile for CNC machine vacuum tables, the spoilboard tile comprising:

• a spoilboard substrate that is planar and that has a spoilboard thickness, the spoilboard substrate having a top spoilboard surface and a bottom spoilboard surface;
• a first non-porous gasket layer that is substantially planar and that has a first thickness that is less than the spoilboard thickness, the first non-porous gasket layer having a first top surface and a first bottom surface;
• a first adhesive layer positioned between the first bottom surface of the first non-porous gasket layer and the top spoilboard surface of the spoilboard substrate, the first adhesive layer adhering the first non-porous gasket layer to the spoilboard substrate on the top spoilboard surface;
• a second non-porous gasket layer that is substantially planar and that has a second thickness that is less than the spoilboard thickness, the second non-porous gasket layer having a second top surface and a second bottom surface;
• and
• a second adhesive layer positioned between the second top surface of the second non-porous gasket layer and the bottom spoilboard surface of the spoilboard substrate, the second adhesive layer adhering the second non-porous gasket layer to the spoilboard substrate on the bottom spoilboard surface;
• wherein the first non-porous gasket layer comprises a plurality of apertures arranged in a distributed pattern, and wherein the second non-porous gasket layer comprises a plurality of apertures arranged in the distributed pattern, further wherein the spoilboard substrate comprises a plurality of through-holes extending from the top spoilboard surface to the bottom spoilboard surface, the plurality of through-holes of the spoilboard substrate being arranged in the distributed pattern and substantially aligned with the plurality of apertures of the first non-porous gasket layer and the plurality of apertures of the second non-porous gasket layer, such that corresponding apertures of the first non-porous gasket layer, corresponding through-holes of the spoilboard substrate, and corresponding apertures of the second non-porous gasket layer are positioned in substantially the same locations across the spoilboard tile and provide continuous airflow paths through the spoilboard tile;
• wherein the spoilboard tile is individually replaceable when assembled among an array of replaceable spoilboard tiles on the CNC machine vacuum table.