This waterproof poly film is black on the outside and white on the inside. The white side reflects light on the growing surface, as it reflects 90% of the light. The waterproof, light-proof film also helps prevent the growth of algae and mold on walls. By putting the black surfaces together, you can economically and effectively partition off indoor gardens.

Ideal For: 

• Polythene
• Vapour barrier
• crawl space
• cellar