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Using Mylar reflectors

Discussion in 'General Plant Topics' started by underground, Feb 21, 2005.

  1. underground

    underground Junior Poster

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    I'm currently using mylar film glued into the inside of my hood as a reflector, since the hood is a Juwel Rekord one and hence has little room inside.

    Is this likely to be adequate?
     
  2. Ian H

    Ian H Guru Class Expert

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    Re: Using Mylar reflectors

    I thought about using Mylar as it's cheap and highly reflective. I hung back as I wasn't sure if it would withstand the high temperatures.

    I suspect that it isn't as effective as a shaped reflector and would scatter the light rather than focus it downwards.

    Ian
     
  3. chubasco

    chubasco Guru Class Expert

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    Re: Using Mylar reflectors

    Depends on the shape that it is glued to :) If it is in the shape of a MIRO4
    reflector, it would approximate its vaunted reflectivity. However, some
    mylar doesn't hold up to high temps like you stated, and one morning you
    could wake up to see all these shiny flecks on the surface of your tank,
    not a good thing. There's a guy on APD that recently built a reflector and
    used the safe kind of mylar. Will check the archives and see what he used.

    Bill
     
  4. chubasco

    chubasco Guru Class Expert

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    Re: Using Mylar reflectors

    Depends on the shape that it is glued to :) If it is in the shape of a MIRO4
    reflector, it would approach (perhaps) its vaunted reflectivity. However,
    some mylar doesn't hold up to high temps like you stated, and one morning
    you could wake up to see all these shiny flecks on the surface of your tank,
    not a good thing. There's a guy on APD that recently built a reflector and
    used the safe kind of mylar. Will check the archives and see what he used.

    Bill
     
  5. chubasco

    chubasco Guru Class Expert

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    Re: Using Mylar reflectors

    This is from the APD archives:
    http://www.hydroponics.com/pricing/pricing02.htm

    Click on "Price List" then "Reflective Material"

    The "heavy" stuff is supposed to be safe, that is, resistant to heat and
    water.

    Bill
     
  6. Ian H

    Ian H Guru Class Expert

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    Re: Using Mylar reflectors

    I think I'll stick with my polished aluminium reflectors for now. My lighting phylosophy is 'to allow one for the pot' any way and allow for less than optimum reflection.

    Ian
     
  7. Tom Barr

    Tom Barr Founder
    Staff Member Administrator

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    Re: Using Mylar reflectors

    It's better than nothing.
    I use it on cheapy 15 w lights.

    Otherwise buy a decent reflector, see Aquaticeco for reflectors.
    I got some smaller ones for about 5-8$ ea and these are similar to those MIRO's.

    Regards,
    Tom Barr
     
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