Aluminum foil?

Coho

Coho

Well-Known Member
Buy some cheap white paint. Foil can have hot spots and is not as reflective as it seems.
 
StillMedicated

StillMedicated

Member
Reflective mylar is the way to go if you ask me, but for right now im using heavy duty tin foil for my cfl closet grow and havent had any issues or hot spots so far. Probably gonna though if your lights are HPS or MH just cuz of the heat difference
 
red0021

red0021

Active Member
I would get a mylar blanket, sold as emergency blankets, or survival blankets. You can get them on amazon for under $2 and shipping is free.

Or you can just go to walmart and they're probably only a couple bucks.
 
grandpa 1949

grandpa 1949

Well-Known Member
red0021 said:
I would get a mylar blanket, sold as emergency blankets, or survival blankets. You can get them on amazon for under $2 and shipping is free.

Or you can just go to walmart and they're probably only a couple bucks.
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YA!
Good looking pup!
 
L

lighting

New Member
The best choices are either Mylar or diamond reflective sheeting which reflects up to 95% of light when tacked flat against walls. Loose or wavy Mylar is not so efficient and will decrease reflective ability. Best for stable walls such as a closet or wardrobe. Can be quite expensive if you're working on a budget.

White plastic sheeting is around 90-93% efficient and can be used to make portable, waterproof walls. Cheap black plastic sheeting will ensure no light leaks into or out of your grow room.

Flat white emulsion paint is also an efficient light reflector. This is ideal where you are working on a tight budget.

NEVER use tin foil to line your growroom. This causes hot-spots and can damage your plants.

You can also paint the floor of the room or, alternatively, you can purchase a special lining for the floor which is not only reflective, but also waterproof and easy to clean. Good for hygiene.

Whatever lining you choose, you should remember that this is an important part of the design of your growroom. As light is probably the most important factor for the success of your crop, it is common sense that dictates you should maximize the light available to your plants. Lack of light to the lower leaves can spell disaster to even an experienced grower.​
 
lime73

lime73

Weed Modifier
lighting said:
The best choices are either Mylar or diamond reflective sheeting which reflects up to 95% of light when tacked flat against walls. Loose or wavy Mylar is not so efficient and will decrease reflective ability. Best for stable walls such as a closet or wardrobe. Can be quite expensive if you're working on a budget.

White plastic sheeting is around 90-93% efficient and can be used to make portable, waterproof walls. Cheap black plastic sheeting will ensure no light leaks into or out of your grow room.

Flat white emulsion paint is also an efficient light reflector. This is ideal where you are working on a tight budget.

NEVER use tin foil to line your growroom. This causes hot-spots and can damage your plants.

You can also paint the floor of the room or, alternatively, you can purchase a special lining for the floor which is not only reflective, but also waterproof and easy to clean. Good for hygiene.

Whatever lining you choose, you should remember that this is an important part of the design of your growroom. As light is probably the most important factor for the success of your crop, it is common sense that dictates you should maximize the light available to your plants. Lack of light to the lower leaves can spell disaster to even an experienced grower.
​
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ok there i can read it now...that other blue is way too light to see clearly ...lol
 
Warlock1369

Warlock1369

Well-Known Member
Can we get rid of colors that don't show up on a white background? Good post thow. Just impossible to read.

lighting said:
The best choices are either Mylar or diamond reflective sheeting which reflects up to 95% of light when tacked flat against walls. Loose or wavy Mylar is not so efficient and will decrease reflective ability. Best for stable walls such as a closet or wardrobe. Can be quite expensive if you're working on a budget.

White plastic sheeting is around 90-93% efficient and can be used to make portable, waterproof walls. Cheap black plastic sheeting will ensure no light leaks into or out of your grow room.

Flat white emulsion paint is also an efficient light reflector. This is ideal where you are working on a tight budget.

NEVER use tin foil to line your growroom. This causes hot-spots and can damage your plants.

You can also paint the floor of the room or, alternatively, you can purchase a special lining for the floor which is not only reflective, but also waterproof and easy to clean. Good for hygiene.

Whatever lining you choose, you should remember that this is an important part of the design of your growroom. As light is probably the most important factor for the success of your crop, it is common sense that dictates you should maximize the light available to your plants. Lack of light to the lower leaves can spell disaster to even an experienced grower.​
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RetiredMatthebrute

RetiredMatthebrute

Well-Known Member
you can use foil with no issues but its expensive and not "ideal" depending on the size of the room and what your using to make it a can of flat white paint might be the cheapest and most efficient way to go. if you have a few bucks go with panda film, light proof and reflective.

if your on a tight budget and you already have the foil go for it you will be fine, hotspots are a joke and i dont think i have ever seen actual proof of this myth. bottom line is a roll of foil is like 5 bucks and it dosent go verry far. a can of white paint is like 3 bucks and it goes way further than the foil and is a bit more reflective.
 
ANC

ANC

Well-Known Member
I painted my box out in gloss white enamel which also acts as a waterproofing.....

I don't think the problem is hotspots with foil, but rather the way it difuses light.
 
scubatc

scubatc

Well-Known Member
foil is used to reflect heat not light. If your just using CFL'S then you dont really need to worry about heat spots but with HPS/MH you will.
 
Gastanker

Gastanker

Well-Known Member
scubatc said:
foil is used to reflect heat not light. If your just using CFL'S then you dont really need to worry about heat spots but with HPS/MH you will.
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Mylar was designed to reflect heat, not light... That's why Nasa uses it - to block heat in space. Also the reason it works in space blankets, insultation, fire fighters clothing...

Foil works fine, it will not burn your plants and it's quite reflective.
 
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