In Safe Foundry Practice, you should not pour into molds which are on a concrete floor. This practice is dangerous because the molten metal spilled on the floor will cause chunks of concrete to blow out of the floor surface under the molten metal, throwing hot metal and concrete upward onto the operator. If you notice, in foundries, you will never see them pour on anything but dirt floors or over a grid. In most schools, the foundry area seems to be an after thought because there is never a safe pouring area built into the floor. For this reason, the makers of MIFCO furnaces, safety tongs and shanks, have come out with another product to make the foundry safer. The Sectional Steel Grid Pouring Floor is made up of 2' x 4' sections that are fastened together. When laid on the floor side by side they give you a pouring floor that is 4' wide and as long as you want it. The grid floor can be laid in minutes. Spread the sand between the grids and the pouring area is ready for the foundry session whether it is a day, six weeks or a year. When the foundry session is over, just pick up the grids, sweep up the sand and the area is clean again.