Thermofused Laminate Technology- uses heat and pressure to produce a permanent thermal bond between the melamine laminate and a 1" high-density substrate. Delamination is simply not possible. Tops are resistant to scratches, abrasions, stains, chipping, radiant heat, steam and mild chemicals. These tables have traditional square corners and use a 3mm PVC edge banding that will not chip or crack. Good for general science classroom activities.