Diamond Grow Reflective Sheeting
This highly reflective, lightproof sheeting is the embossed version of Mylar and is designed to eliminate hot-spots in your grow room.
Diamond Grow sheeting offers 100% lightproofing and is PET coated to make it harder wearing, as well as being crease resistant.
The embossing on the sheeting allows for a better diffusion of light and eliminates the accidental focussing that can lead to scorched plants, although this is unlikely unless you are using a lot of HID lamps.
Diamond Grow Reflective Sheeting measures 1.25m wide and comes off the roll by the metre.