When cutting acrylics and plastics, "chip-welding" – a melting of the material is a concern, but not with these Non-Melt blades. With a modified triple-chip grind and a -2° hook angle (except PC-620), they produce less heat than a standard blade, leaving a crisp and smooth edge in acrylic sheets, corrugated polypropylene, HDPE, Lexan™, Plexiglas™, polycarbonates, Teflon™, Coroplast™, High Impact Polystyrene (HIPS), Low Density Polyethylene (LDPE), Thermoplastic Polyolefin (TPO), Polyethylene Terephthalate Glycol (PETG), plastic laminate flooring and other plastics.