Black & White poly is thick plastic sheeting that is black on one side and white on the other. It can be used to cover up windows, make partitions, cover floors and reflect light onto the plants. It is great for partitioning off spaces, as it is very tough, reflective, and can be handled on a daily basis without damage or tearing. The white side reflects 90% of all light. It is 6 mil thick and is 10 feet wide. It is sold either by the 100' roll, 10 foot square, or by the foot.
Posted by peter on 13th Dec 2011
90 percent reflective, 100 percent diffusion. If getting the big roll to do and entire room, get a friend as this stuff can get hard to wrangle as you start wrapping corners in your space. Panda cloth is so easy to use and this stuff is very strong and easy to clean up.