The original high temperature filter! Please refer to the Supergel swatch book to select the correct colour shade. Complies to BS3944 part 1 flammability test. Rosco Supergel is uniquely made from deep dyed pellets of polycarbonate extruded to the exact thickness and coated on either side with a microscopic clear film. It will not distort under heat and is ideal for colour scrollers. Polycarbonate filter will last longer than polyester (Lee and E-Colour) and has better fire resistance. It will comply with virtually all fire regulations (DIN4102, B1, M1 etc). There are over 130 colours and 30 diffusion materials.