PVC or Nylon Sheet

[tmaker]

am thinking of making my own 'containers' to use in my Aquaponic system as I cannot find the correct size for the area that i have to tinker with.

another issue is the type of plastics they used to make these containers.

also i may want to build a type of Tower in the later stage for my living room.

the question here is - what type of plastic sheet ( standard thickness of about 4 to 6 mm - in a standard size of 4 feet by 8 feet ) is readily available in Thailand that is FOOD SAFE?

i am getting different results when i search on Google - it says 'Food Safe P_ _, P_ _ ,P_ _' and so on.

if I am to compare with drinking bottles - PET , this is surely is safe.

any input is greatly appreciated.