What to cover with?

Ok guys, due to limited space i would like to start a veg room in same room as my flowering room, i have constucted a grow tent frame out of pvc, my question is what can i cover it with so i wont lose any light? Dont want to disturb my flowering plants that are on 12/12. Totally open 8x8 room...have flowering girls on table, would like to place tent in corner so i could harvest every8-10 weeks and keep it going. I looked at tarps, canvas, poly material.....any suggestion?

black n white poly? black on 1 side and white on the other cheap material but effective light blocking and easy to work with.

any other thoughts?

I agree, panda film. Cheap, easy to clean, not sure how you would cover a PVC frame, mine is wood. Check discount hyrdo, they sell it by the foot for a buck so you don't have to buy enough to wrap the whole Fing house.