No, you can't use that. It's about as shiny as tinfoil, and that's actually not as reflective as it looks. Shiny, sure, but not reflective, and that is what matters.

Mylar blankets from the camping supply store or WHITE paint or panda film.

SunnyD can you stop giving bad advice please? Thank you.
stinkyattic Reviewed by stinkyattic on . Shiny water Proofing Tape For Reflection? Can I use this shiny water proofing tape on the inside of my grow bow so it reflect the light??? Rating: 5