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paint or mylar

Discussion in 'Grow Room Design/Setup' started by sosogrow, Feb 27, 2023.

  1. my grow room is block walls already white but way older paint i was thinking about a new coat before my girls go in or is mylar a better option? if paint is the answer what is the most reflective ? i was told white but what kind of white lol there are a bunch?
     
  2. Mylar is crap. Use a white primer like Kilz and then paint using standard white paint. Nothing special. Just regular white paint.
     
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  3. For a small environment like yours I'd say its like deciding between using 87 or 89 octane gasoline..... either way, you won't notice a difference in the way your car runs.
     
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  4. my self id go for painting walls with matt white .and give the wall a new coat every year or so ,,,,,mac
     
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  5. #5 Vee, Feb 27, 2023
    Last edited: Feb 27, 2023
    just yesterday, I at last hung some mylar, with one wall and the inside door to do today....sometime
    for the last 40? years I prefer and have used flat white paint, but the mylar was free so giving it a shot,
    difficult to cut, as its so shiny, use a dim room, and a sharp boxcutter, hanging it Im not sure but one side is maybe shinier than the other?
    its a shit job that I will finish, using thumb tacks into wood wall, a mild worry being the first night last night me thinking the mylar may fall of onto the lamps and burn my place down./...is still a concern so will be taping it up too, a lot of work for marginal gains, wishing I stuck to paint, but the results will / should show in the weed

    cheers

    ps on wiki is a page of reflectivity of Mylar over paint sumplace?
     
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  6. true but even a half mile to the gallon adds up when you drive across the country i think i will just wash the damn walls and call it the day lol
     
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  7. [​IMG]

    Inverse square rule of light. 2 X the distance is 1/4 the intensity. 3 times the distance is 1/9th the intensity making reflected light all but useless as far as the plants are concerned. Black walls will be just as good. :)

    BNW.
     
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  8. Another thing Soso, I opened the door last night, forgetting about the Mylar and just about sucked the shit off my walls,
    note to self 'Open Door' slow like ...lol

    I'll keep it up for a month then reconsider...maybe
     
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  9. and if you're spraying anything in the first few weeks of flower...say goodbye to that reflectivity....gonna have water spots up and down the mylar.
     
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  10. For a grow room, the most reflective type of white paint is a flat, non-glossy paint with a high level of titanium dioxide. This type of paint will reflect light evenly without creating hot spots or glare.

    That being said, mylar is often considered a better option for reflecting light in a grow room as it has a higher reflectivity than most white paints. Mylar is a reflective film that can be easily applied to walls and ceilings, creating a highly reflective surface that will increase the overall efficiency of your grow lights.
     
  11. If you are looking to increase the reflectivity of your grow room, painting the walls with a reflective paint can be a good option. White paint is a popular choice because it reflects light well and helps to distribute light evenly throughout the space. When choosing a white paint, it's important to look for one that is specifically designed to be reflective. You can check the paint can or speak to a paint specialist at your local hardware store to find a reflective paint that is suitable for your needs.
     
  12. Is it just my stoner be warry perspective or are the two posts above me SUS? Just feels too bot like to me.
     
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  13. both new members and they sound bottish as hell now that you mention it
     
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  14. both are just new within a day yeah i bet we have bots now but the advice was sound but vague
     
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  15. one of Shanes I missed: at last something pertainint on the lightr I got ...lol

    by having Mylar on my walls I've doubled my reflectivity ... Hmmmmm!
     
  16. I really like Migro video's but this one is not making any sense, the silver mylar is increasing the light at the sides, led must be 6" off the walls, some spots are hitting nearly 880(sides), but dead center its under 800

    reflective light from leds at 12" can increase the light to the canopy but I thought the whole idea with leds is they don't reflect much light against the walls, the light from the leds are narrow so there less waste, the plants receive most the light.
     
  17. #18 GGinCT, Mar 4, 2024
    Last edited: Mar 4, 2024
    Which one works better depends on whether the light source is point-like or more spread out, room shape, growing style.

    I think white paint is low maintenance compared to Mylar. If nutrient water or some fish emulsion/garlic/Neem oil concoction gets sprayed all over it scrubbing or Magic Eraser usually works. If not you just retouch as needed.

    I used rubber based ultra white roofing paint in my old basement grow. It easily covered the concrete walls and floor as well as the wood and plywood walls. I vote for white paint first, then try Mylar and see if you think it's worthwhile. I went back to the paint, but I had a tall narrow chamber and an HID.
     

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  18. Mylar can be thin & a PIA to use. The reflective vinyl stuff as seen on amazon (you don't have to buy it there, Has been easy to use & can be washed between grows much easier IMO??????????.
     
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  19. I'm open to trying again Mylar again, I suspect the results with LEDs could be different and chamber shape will be wider. I doubt I'll want to spend so much time training as I used to also. The thought of tweezing out every side shoot for weeks on end no longer turns me on.
     
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