Foam core is a lightweight, rigid material made of a polystyrene foam core sandwiched between two sheets of paper or plastic. It is often used for making signs, displays, and other lightweight structures.
There are a few different ways to cut foam core, but the best way is to use a sharp knife and a straightedge. First, score the foam core along the desired cut line with a sharp knife. Then, use a straightedge to guide the knife as you cut through the foam core.
