Tin Foil

From what i have read mate Its not a good idea, in fact its a real bad idea because the foil causes hot spots. Get some black on white PVC from a grow shop. Its real cheap and great as a reflective surface. Or if you have time and im expecting you do if your going to foil your wall's. Is to paint the walls white with a paint that wont go moldy when wet.

Hope that help'd Dan
 
I think you mean aluminum foil, tin foil I imagine would be hard to purchase. Both are ineffective for reflectors, use flat white paint, panda film or mylar. Htgsupply.com has decent prices on reflective materials.
 
aluminum foil is only good for cooking IMO

emergency blankets are cheap and you can get them at walmart; its practically made of just mylar
 
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