Light Deprivation/Blackout Film

Total Blackout

by Farm Plastic Supply


Farm Plastic Supply uniquely offers one of our signature products...Total Blackout.   It is tough, pinhole free, and pitch black with an ultrawhite outer layer.  Our product is 6 mil and is the choice product for medical cannabis growers.

We often think of a greenhouse as a sunny enclosure with either clear or white plastic film covering a structure that contains their pride and joy…their plants.  You may be surprised to learn that even though a greenhouse structure may look white from the outside, it may be a complete blackout from the inside.  A greenhouse that is a TOTAL BLACK is for light deprivation.  Light deprivation is a breakthrough greenhouse concept that is now very commonly used to stimulate flowering in angiosperms (flowering plants).  For many growers, it is often the flower and the fruit that pay the bills.  So how does this all work?

Understanding light deprivation was a major breakthrough that was proven in the 1920’s.  Black out light deprivation is all about flowering.  A plant will meter the light cycle and then naturally decide to flower based on its species.  Growers have found a way to control flowering by changing their focus from daylight hours to night time hours.  Let me try to simplify.  Flowering plants have a meter on them (actually a photoreceptor protein).  It was first thought that the meter was for measuring changes in sunlight.  Later is was proven that many flowering angiosperms will flower based on the duration of the night.  Simply amazing, control the dark hours and you can get your plant to flower.  For some plants, a single season flowering plant could now flower multiple times per year with light deprivation!  This process is widely use for growing medical marijuana. 

The key is to try to understand the night time hours required for flowering your plant.  When you have a handle on the night, you then can start inducing nighttime by using Farm Plastic's Total Blackout film.  This will require raising and lower blackout shades but the reward will be timely and more predictable flowering.  In addition, flowering will go from once a year to multiple times a year.  Plants are very receptive so be sure to use proven blackout films.  Keep in mind, shade is not blackout.  Do not spin your wheels or waste your effort by using inferior products for total light deprivation.

When total blackout is required, this can be best accomplished using Farm Plastic Supply’s tri-layer 6 mil black out film.  Two of the 3 melted layers of our film are black while the other external layer is deep white to help from keeping the greenhouse from overheating.  Some will call this plastic film type Panda film.  Our light depo film is not basic Panda film.  Our film is a true thick and tough 6 mil while basic Panda is 5 mil.  We also provide 2 dark black layers of melted virgin resin to one external white layer.  There are more expensive blackout films available but keep in mind that they are heavier and they cost several times the price.  Farm Plastic Supply has the correct balance with our 6 mil.  A tough total blackout film that will not break your bank or your back!


Product Compare (0)


Total Blackout Film 12' wide

Total Blackout Film 12' wide

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$29.99

Total Blackout Film 16' wide

Total Blackout Film 16' wide

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$36.99

Total Blackout Film 20' wide

Total Blackout Film 20' wide

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$42.99

Total Blackout 24' x 100' Greenhouse 6 mil Thickness

Total Blackout 24' x 100' Greenhouse 6 mil Thickness

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$159.99

Total Blackout Film 24' wide

Total Blackout Film 24' wide

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$35.99

Total Blackout 32' x 50' greenhouse 6 mil Thickness

Total Blackout 32' x 50' greenhouse 6 mil Thickness

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$109.99

Total Blackout 32' x 100' greenhouse 6 mil Thickness

Total Blackout 32' x 100' greenhouse 6 mil Thickness

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$207.99

Total Blackout Film 32' wide

Total Blackout Film 32' wide

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$42.99

Total Blackout 40' x 100' greenhouse film 6 mil Thickness

Total Blackout 40' x 100' greenhouse film 6 mil Thickness

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$259.99

Total Blackout Film 40' wide

Total Blackout Film 40' wide

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$49.99

Total Blackout 50' x 100' greenhouse film 5 mil Thickness

Total Blackout 50' x 100' greenhouse film 5 mil Thickness

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$299.99

Total Blackout 56' x 150' greenhouse film 6 mil Thickness

Total Blackout 56' x 150' greenhouse film 6 mil Thickness

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$579.99

Total Blackout 60' x 150' greenhouse film 6 mil Thickness

Total Blackout 60' x 150' greenhouse film 6 mil Thickness

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$659.99

Total Blackout 65' x 100' greenhouse film 6 mil Thickness

Total Blackout 65' x 100' greenhouse film 6 mil Thickness

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$449.99

Total Blackout 65' x 150' greenhouse film 6 mil Thickness

Total Blackout 65' x 150' greenhouse film 6 mil Thickness

White/Black 3 Ply High Tensile Blackout filmtriple layer film for high tensile strength Water tight1..

$679.99

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