PTFE
PTFE (polytetrafluoroethylene) is a high-quality fiberglass woven membrane that is an ideal fabric for tensile membrane structures. PTFE fabric is high quality, weather-resistant, fire-resistant, UV-resistant, and extremely durable. The Teflon coating creates a smooth surface that allows the fabric to be “flushed” by rainwater, reducing the need for frequent cleaning. The membrane exhibits elasticity under normal conditions and will not creep or stress relax, with a life expectancy of over 30 years and a standard PTFE warranty of 12-15 years.
Application places: stadiums, commercial centers, subway stations, railway stations, airports, stages, amphitheaters, etc.
PTFE is highly reflective, making it ideal for sunshade structures as it can withstand high temperatures without transferring too much heat. This is the defining characteristic that distinguishes PTFE from traditional glass. Tests have shown that up to 80% of solar energy is reflected, with the fabric itself absorbing 8%. However, some grades of PTFE can absorb up to 14% of solar energy, giving the fabric a transmission rate of 12%.
PTFE tensile structure has the advantages of high durability, fire resistance and anti-fouling properties, good UV resistance, low and high temperature resistance (-70℃~230℃), and excellent optical properties. PTFE can be spot welded or sewn, resulting in superior fabric strength and, by increasing durability, eliminating creases and tears caused by repeated folding and bending of the material.
Lighting
PTFE fabric has the ability to disperse light evenly, limiting the need for artificial lighting during the day and creating an environment in which houseplants and plants can survive.
Sound absorption
Given PTFE’s breathability and flexibility, it has tremendous sound-absorbing properties. External noise can be isolated to meet various building noise standards, while reverberation is directly related to the internal dimensions of the structure. The acoustics are significantly enhanced for smaller rooms and can be processed to suit larger scale environments such as stadiums and aquatics centres.
Maintain
PTFE fabric is a low maintenance option but still offers superior quality, strength and long life. UV light bleaches fabrics, creating a bright, clean aesthetic. The self-cleaning properties created by the Teflon coating allow the fabric to resist moisture and remain clean and bright after installation.
There are several PTFE material types available, including PTFE-coated fiberglass, PTFE glass mesh, and silicone-coated fiberglass. The main difference between PTFE-coated fiberglass and traditional glass is its superior sunshade coefficient. As lighting levels increase, overall energy savings can be achieved using PTFE-coated fiberglass, even in cooler climates. In very warm climates, PTFE fiberglass membranes are more energy efficient than traditional systems, even with low lighting levels. The savings compared to traditional tilt-glass systems are even more significant.
Advantage:
- Extremely resistant to chemical and biological attacks
- Very resistant to long-term exposure to weather and UV radiation
- For permanent structures
- High reflectivity
- Self cleaning
- Highest fire resistance
- Limited color possibilities
- Light transmittance up to 20%
- Life expectancy exceeds 25 years