They are stripped to the bone, to provide the lowest cost possible. Since they are made of 4â x 8â plywood, the signs are normally either 8â or 12â high by a number divisible by 4 wide (maybe 24â to 32â side). These types of signs can cost between $2,000 and $10,000 to build, based completely on the height and size. The smallest steel monopole sign can cost as little as the wooden billboard. Its name is the â8-sheetâ because, in the old days, it took 8 sheets of wallpaper to cover it. It is around 5â x 12â in size, and is nothing more than a single steel pole and two metal frames and faces attached directly to that pole.
The ETFE copolymer may be a copolymer of tetrafluoroethylene and ethylene (hereinafter referred to as ETFE), a terpolymer of tetrafluoroethylene, ethylene and another monomer, or a multipolymer of tetrafluoroethylene, ethylene and at least two other monomers.
Of those available in the market, the most common fluoropolymers are PFA and PTFE due to their unique qualities and versatility. PFA, or Perfluoroalkoxy, is a type of fluoropolymer. It has very similar properties as the more common polytetrafluoroethylene (PTFE), which is the more popularly known form of Teflon. PFA was conceived by DuPont Co. and is given the brand name Teflon PFA. The difference it has from the resins of PTFE is that PFA is melt processable.