PTFE Coated Filter Bags: The Standard for High-Temperature Filtration

For high-temperature industrial exhaust, standard polyester or polypropylene dust collection bags will quickly melt or degrade. The gold standard for these extreme environments is the PTFE coated filter bag.

What temperature can PTFE filter bags handle? PTFE (Polytetrafluoroethylene), commonly known as Teflon, is incredibly heat resistant. Pure PTFE filter bags and PTFE-coated fiberglass bags can easily withstand continuous operating temperatures of **260°C (500°F)**, with short-term surges up to 280°C.

Why use PTFE? Beyond temperature resistance, PTFE offers two massive operational advantages: 1. **Absolute Chemical Inertness:** PTFE is virtually immune to acid gas attacks (SOx, NOx) common in coal-fired power plants and chemical incinerators. 2. **Exceptional Cake Release:** PTFE has one of the lowest coefficients of friction of any solid material. A PTFE membrane acts like a non-stick frying pan; even sticky, hygroscopic dust drops right off during the pulse-jet cleaning cycle. This significantly reduces the pressure drop across the baghouse, saving massive amounts of fan energy.

If your plant suffers from frequent bag failure due to heat or acid gas, consult Filtech Fabrics for a PTFE upgrade.