Mylar Reflective Film on White 2mil 4ft

Mylar on White for Brighter Grow Room Walls

Every bit of light that hits a dark wall is lost to the plants. This film turns that loss around with a reflective PET polyester face rated at up to 95% reflectivity. Behind it sits a white polyethylene backing, which adds strength and gives the sheet a clean white reverse side. The reflective face diffuses light as it returns it, spreading an even wash instead of hot spots. That helps plants at the edges and lower in the canopy receive more consistent light. It sends heat back along with light, which helps keep temperatures steady in a tent or room. The 2mil backed sheet resists tearing while it is stretched and fastened. Rolls are 4 ft wide and come in 25, 50, 100 and 150 ft lengths. Short rolls suit a single tent. It works with hydroponic systems, soil beds and other indoor horticulture setups.

Installing White-Backed Reflective Film Around the Grow Space

Hang the film with the silver face toward the plants and the white side against the wall. Measure each surface, then cut panels with scissors or a utility knife. Secure the top edge first using staples, tacks or tape, and smooth the sheet downward. Wrinkles scatter light unevenly, so keep each panel pulled flat. Overlap the edges of neighboring panels and tape the seams to close any gaps. The same sheet lines ceilings and floors, recovering light that would escape above and below. Keep panels fastened near intake fans and vents so they do not flap or block airflow. A damp cloth clears dust that would dull the reflective face. Brighter walls reduce the need for extra lighting in dark corners. That adds up to lower energy use over many crops.

Key Features

• Up to 95% Reflectivity: Returns most of the light reaching the walls back to the canopy.
• White PE Backing: Adds strength and gives the sheet a white reverse side.
• Even Light Diffusion: Spreads reflected light to limit hot spots.
• Reflects Heat and Light: Helps hold steady temperatures in a tent or room.
• Tear-Resistant 2mil Sheet: Holds up to stretching, stapling and taping during installation.
• Four Roll Lengths: 4 ft wide in 25, 50, 100 and 150 ft lengths.

Technical Specifications