Q: I’m looking for a chemically resistant polymer that can withstand chlorine and chlorine dioxide as well as a decent amount of weight and tension (around 27 lbs of weigh). Can you suggest a material?
A: Of course it depends on the concentrations and temperatures you are operating at but generally speaking a very chemically resistant and strong polymer to consider would be PVDF or Kynar fasteners. PVDF fasteners offers an ultimate tensile strength of 5000-8000 psi providing structural strength. This could also be improved with glass fiber by about 2x. You will have to consider the diameter of your screw and the temperature of the applications to determine if PVDF is strong enough though