Perspex cast acrylic fluorescent colour sheets perspex 600x400x5mm7t97 these fluorescent cast acrylic neptune blue sheets from perspexreg will certainly catch the eye and are ideal for use particularly on interior signs sales displays and other in store media these sheets are easy to fabricate and to cut to shape to suit your design perspex cast acrylic sheet 600 x 400 x 5mm fluorescent neptune blue