The Reflectix stuff is fine. I know several KBS growers who use them to wrap around their buckets. I think Wal-mart sells something called Space Blankets. They are made from mylar and will work also.
Zandor Reviewed by Zandor on . Reflective walls A mate of mine assures me that brilliant white emultion paint is just as effective as foil for reflecting light. I've tryed both in my room. I'm using white at present and this has had no negative effects on yeild or quality. It's much easier and cheaper to paint walls white, rather than pissing about with foil. Rating: 5