Black & White Poly

A waterproof alternative to reflective mylar! Black & White Poly is black on one side and white on the other. The white side is used for reflecting light back to your growing area (reflects 90% of all light). The black side prevents light filtration and does not allow algae growth. Heavy-duty construction is perfect for partitioning growing areas and can also be used for lining floors and other surfaces. Easy to install. Each roll is 10' wide x 100' long. Choose between 4 mm or 5.5 mm thickness.