Mylar vs Panda Film vs Flat White Paint?

Hello

I was wondering if Panda film or flat white paint has the same reflective properties as mylar and which one is less flammable cuz i dont want a fire??

Also which one do you use for your grow room??

Thanks

Mylar is like 99% reflective 97% at least. White is not as good.

i personally use diamond reflective sheeting....



J

link to what i use.



http://www.greenshorticulture.co.uk/Grow-room-Products-20/-Sheeting-331/Diamond-Grow-Reflective-Sheeting-855.asp




J

Thanks Jondamon and dystopian looks like mylar is the way to go what about panda film also what about the flammableness of mylar???

I use emergency blankets made of mylar. Yeah, I'm cheap, but it works and you can buy it in small amounts. My plants haven't complained yet, and at 2 bucks a pop inc shipping just seems a good way and it reflects well.

cranker said:

I use emergency blankets made of mylar. Yeah, I'm cheap, but it works and you can buy it in small amounts. My plants haven't complained yet, and at 2 bucks a pop inc shipping just seems a good way and it reflects well.

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Dont u ever wonder/care/worry about flammableness

i use mylar and my house hasnt burned down yet...

08GSXR600 said:

i use mylar and my house hasnt burned down yet...

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lmfao lololollol

James! said:

Dont u ever wonder/care/worry about flammableness

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The blankets are the thinnest mylar you can get. I have it foil taped to the wall and used CFL's. I just did a test on a 4"x4" piece. It's a lot thinner than normal mylar. A cigarette didn't cause it to catch fire, just wilt a little. I pressed a 45W CFL against it for 30 seconds, nothing. I put a lighter under it and it wilted, finally caught fire after a few seconds but went out when I removed the lighter. So no, I'm not terribly worried about it.

You have to take into account that there are 2 types of mylar also, plastic and polyester. The plastic one is what I use. I have no experience with the polyester one.

cranker said:

I use emergency blankets made of mylar. Yeah, I'm cheap, but it works and you can buy it in small amounts. My plants haven't complained yet, and at 2 bucks a pop inc shipping just seems a good way and it reflects well.

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I use the emergency blankets also

check out my dresser cab , the inside is covered in it

well the bottom is not , its shitty foil tape lol

but the front and back and the sides are all emergency blanket

Well one adavantage of panda over mylar is the color "white". silver collects heat and white reflects it. both panda and mylar make the same claim as being 97% reflective.

I use this stuff called Permaflect, it looks a little more dull/less reflective than mylar, but it is a lot thicker making it easier to clean.

people say tin foil is the worst, here are 2 mirrors, like tin foil with a very good reflective surface, an experiment with mirrors. you can see the huge reflective light difference on the pots.
its all about light reflection, use what you have available. if its white or reflective chrome then you can use them, if one is a slight percentage over the other then so what, white paint is cheap.

hoagtech said:

Well one adavantage of panda over mylar is the color "white". silver collects heat and white reflects it. both panda and mylar make the same claim as being 97% reflective.

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actually chrome or silver is the best reflector of heat, thermal hot drink flasks are not white inside. white will absorb more heat and reflect less light.
manufacturers claim their products are better, they have no choice but to try and increase sales.
silver plastic is better than white. but would have to be dimpled, for the prevention of hotspots.
and we are talking silver, not grey.

WeeGogs said:

actually chrome or silver is the best reflector of heat, thermal hot drink flasks are not white inside. white will absorb more heat and reflect less light.
manufacturers claim their products are better, they have no choice but to try and increase sales.
silver plastic is better than white. but would have to be dimpled, for the prevention of hotspots.
and we are talking silver, not grey.

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nope
Anything that has a color closer to black will absorb heat more than reflect it. and silver is a lot closer to black than white (whats closer to white than white?)
It MAY reflect more light but temperature differences are a drawback of mylar
And it doesnt matter what the inside of flask is colored. its the insulation that retains the heat, and the reflective outside that reflects outside temperature.

If you hold up an emergency blanket/mylar to the light its pretty translucent. If your lining something like a rubbermaid grow box or pc case, the light inside will be visible from the outside. Just a heads up.

Foil tape is my vote

Dystopian said:

Mylar is like 99% reflective 97% at least. White is not as good.

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yeah white polly is only 90%

hoagtech said:

nope
Anything that has a color closer to black will absorb heat more than reflect it. and silver is a lot closer to black than white (whats closer to white than white?)
It MAY reflect more light but temperature differences are a drawback of mylar
And it doesnt matter what the inside of flask is colored. its the insulation that retains the heat, and the reflective outside that reflects outside temperature.

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i have a vacuum flask the inside is mirrored to reflect heat from the liquid back against itself, the outside is mirrored to reflect the cold. this flask only has an air span between the outside wall and inside.
so you better email the company it is called thermos, and explain your findings, that white is a better heat reflector for the inside of all their flasks, you could be worth millions.
shine a very bright torch on a white wall, and stare at the reflection, will it blind you?
shine a very bright torch on a mirror and stare at the reflection, will it blind you?.
i am puzzled.
can anyone else back up the white is better theory.
when we put a roast of meat in the oven covered in tin foil, it has nothing to do with heat except keep the moisture in the meat,
if you wrap hot food in tin foil. it will keep it hot for a long time.
if you wrap it in white tin foil, you say this will keep it warmer longer. ok contact the foil companys, you may be worth even more millions.
lets start a white foil business.
ok lets start making torches with white faces surrounding the bulbs instead of silver, and..........what about vehicle headlights, i tell you, i can see it, you are going to be worth millions, maybe even billions of dollars. the new bill gates, and i am going to paint the reflective silver part of all my grow lights white.
and the inside of all my cooking pots white with heat resistant paint.