Hydrofarm Black & White Poly, 100' x 10', 4 mil

Get twice the grow room help with this waterproof alternative to Mylar film. Unroll this two-sided film and customize it to your indoor garden, removing the worry of afternoon sun orientation or a climate not conducive to your preferred crop. Use the white side on walls and floors, taking advantage of the material's 90 percent reflectivity. When you want to block out light and sun, use the light-blocking black side. Adding this poly film to your walls requires no structural changes — you'll leave the place just as you found it. Instead of costly lighting and heating additions, rely on black and white poly. Features Heavy-duty plastic, 4 or 5.5 mil 3' long rolls, unfolds to 10' wide Easy to handle Black side seals out light White side reflects

Technical data

• Size: 100 ft x 10 ft | Thickness: 4 mil | Brand: Hydrofarm | Type: Black and white poly film
• White side reflects light for improved PAR distribution in the growing environment
• Black side completely blocks light and acts as a moisture barrier
• 4 mil thickness — lighter than 5.5 mil for applications where puncture resistance is less critical
• 100 ft roll for covering walls, tables, and floors in grow rooms

How to use

• Install the white side inwards and the black side outwards against walls or floors
• Secure with tape or staples — overlap joints by at least 6 in and tape them well
• Periodically clean the white reflective surface to maintain maximum reflectivity
• Avoid dragging sharp objects over the film to prevent punctures
• Replace if the film tears or if the white surface shows noticeable discoloration