POLY SHIELD FOIL - 100 MTS - 120 CM - 120 MUPolyShield PolyShield is a black and silver reflective thermal radiation reflective polypropylene sheet. It has advanced properties through infused metals which give it special properties that are highly reflective, completely light tight and stops infra red heat from being emitted, bouncing it back into the room. Ideal if you need to keep control of your growing environment. All of our high quality reflective sheeting are British Made and will