First, use your utility knife to score the insulated foam.

How to cut foam board smoothly. Measure and mark where you’d like to cut. This is the best way to cut foam board insulation with a utility knife. Follow these steps to make straight cuts in thin foam board:

Because the density and size of foam materials vary greatly, it is very important to know which foam material is suitable. It depends on the density or the foam but in some cases cutting it with a hot knife leaves it quite smooth. When transferring dimensions from an existing piece of furniture, it.

Rub the cut edge of the scrap piece against the cut. To cut your insulated foam, use a utility knife with a segmented blade. Remove the straightedge and clamps, hold the board upright, then apply pressure along the back side, behind the cut line.

To protect the work surface, use a cutting board or cutting mat when cutting styrofoam. Measure and mark where you’d like to cut. Or you may be able to.

Elmer's foam board and xacto craft knives at a.c. 2 the 5 best tools for cutting foam board. The best way to avoid this is placing a straight edge along your cutting line and applying pressure as you make your cut.

You can use a circular saw blade or a grinder for cutting rigid board insulation to ensure smooth and firmly cutting. 2 then, as near as possible, pass the utility knife. The board should snap on the line.