The first step in the process of constructing EPS foam is puffing the EPS resin. The EPS foam resin is puffed when in the manufacturing process they are places in a closed chamber and uncovered to steam.
At this time the warmth from the steam causes the pentane gasoline contained within every bead to broaden, at which will not be unusual to see the foam filler broaden by as a lot as 30-35 instances the starting size.
When they’re fully puffed the beads are primarily made up of air. The puffed beads are then transferred to a drying chamber the place they’re subjected to dry air. Once dry the final product is locations in large luggage to allow them to be shipped. For very giant purposes the puffed beads might be blown straight into a fifty three’ trailer.
Puffed polystyrene beads are used for a number of completely different functions besides the manufacture of EPS blocks. Among the commonest uses for these beans are for beans in a bean bag and on the development web site when light-weight concrete is needed. Most persons are acquainted with beanbag chairs. These chairs noticed their high point in reputation in the course of the 1960’s however lately have seen renewed popularity. The beanbag chairs are stuffed with foam filler at the manufacturers after they blow the beans for a bean bag into the empty bean bag shell, once full they seal the chair. This product is used as a beanbag filler as a result of it isn’t only unique possessing properties that can not be present in different alternatives but also economical.
As mentioned the second hottest use is in development, primarily for light-weight concrete fill. While concrete is generally one hundred fifty Lbs for every cubic foot, the EPS foam filler weighs in sometimes slightly below one pound per cubic foot. There are purposes when the energy of concrete is required but the weight of the concrete is a problem. Usually the most effective resolution is to simply combine the puffed virgin EPS beads right into the mix of concrete. This makes the concrete a lot lighter because the EPS beads takes the place of conventional fill, which is mostly much heavier sand and small rocks. While the concrete can maintain nice energy as more virgin EPS beads are added the energy of the final product get less and fewer and due to this fact the ultimate combination is set by how it will be used.