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.
PTFE (PolyTetraFluoroEthylene) (also known as Teflon) is a fluorocarbon-based conformal coating. PTFE coatings can provide a low co-efficient of friction or slipperiness, corrosion and chemical resistance, heat resistance, dielectric stability, and chemical inertness to the circuit assembly.ikipedia definition: Conformal coating material is applied to electronic circuitry to act as protection against moisture, dust, chemicals, and temperature extremes that, if uncoated (non-protected), could result in damage or failure of the electronics to function.