We are a group of people interested in building a childrens playground in the Huasteca Mountains of Mexico. We need a ceiling material which can let the light pass through, but also be resistant and environmentally friendly. According to our research we think that ETFT plastic can be a good choice for our project, but we would like your advice as experts in Materials Science. Any help will be appreciated.
I do know that many plastics are not as chemically inert as they may have been initially thought, and I doubt we still know for many plastics.