Mylar or not?

[college413]

So i just built a growbox that i am very proud of, i will be puting my 150 watt hps light in there among many things but i was wondering how important mylar is? if its a big deal ill find some but if not could i just use a gloss white poster board or something along those lines that is easier to come by? I heard of an emergency blanket but the farther i read into it the less of a good idea it seemed to be... any help would be great i just germinated my seeds and would like to get them going as soon as possible

 

[ThomJefferson]

best choice, particularly in small areas, as it doesn't hold humidity..

 

[sb101]

if you can get your hands on a little bit of it, you'll be glad you did...really helps get as much as you can outta your light. that being said white paint will do a decent job if you're strapped

 

[DaGambler]

if ur in a box... maybe stick to flat white paint or white plastic sheeting. mylar is great, but it also conducts electricity... so just be mindfull of that if you use it (ie; don't cover the 'floor' with it).
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[ThomJefferson]

if ur in a box... maybe stick to flat white paint or white plastic sheeting. mylar is great, but it also conducts electricity... so just be mindfull of that if you use it (ie; don't cover the 'floor' with it).
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Mylar is not conductive it's an "insulator" but it does build/hold charge -it's used to make capacitors, so it will definitely hold a static charge... that's why you think it's conductive. It's not. I agree, don't use it on the floor as it wouldn't do shit down there...

 

[fureelz]

paint the floor flat white and mylar is the best thing you can get for reflection.

 

[DaGambler]

Mylar is not conductive it's an "insulator" but it does build/hold charge -it's used to make capacitors, so it will definitely hold a static charge... that's why you think it's conductive. It's not. I agree, don't use it on the floor as it wouldn't do shit down there...

hmmm... you may be 100 percent right... all i know is that when i lined a small grow room back in the day i could get a pretty good Constant buzz while touching it... so it seemed to be conducting to me.
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