There are two types of filtration processes:
1. Dry Filtration
The filler fabric is used as a medium to collect the offending particles like dust, smoke, fumes, etc., so as to keep them from being emitted into the atmosphere.
2. Wet Filtration
The filler media allows everything to pass through it except what is desired like solids, precious metals, etc. and the filler media allows only what is desired to pass through it, e.g., clean water. The Dry Filtration market is estimated to be much larger than the Wet Filtration market.
The types of media (fabric) and therefore, the threads employed are determined by the end-use application. The following list gives a general guideline of the substrates used for dry and wet filtration:
A. Dry Filtration
Nomex
Glass
PPS
Others
B. Wet Filtration
Polypropylene
Polyester
Others
Coats provides customised solutions for all your filtration needs.