VC ▁is ▁commonly ▁used ▁in ▁water , ▁chemical , ▁hot ▁and ▁cold , ▁delivery ▁systems ▁for ▁resident ial , ▁commercial , ▁and ▁industrial ▁applications . ▁ ▁Poly vin yl id ene ▁flu or ide ▁Poly vin yl id ene ▁flu or ide , ▁P V DF , ▁belongs ▁to ▁the ▁flu or opol ym er ▁class ▁of ▁therm op last ics ▁and ▁is ▁known ▁for ▁its ▁high ▁chemical ▁in ert ness ▁and ▁resistance . ▁P V DF ▁is ▁obtained ▁through ▁the ▁polym er ization ▁of ▁the ▁vin yl id ene ▁flu or ide ▁mon omer . ▁P V DF ▁therm op last ic ▁is ▁fabric ated ▁into ▁sheets ▁and ▁pip es ▁for ▁engineering ▁uses ▁as ▁well ▁as ▁pow ders ▁and ▁coat ings ▁that ▁can ▁be ▁dissol ved ▁in ▁sol vent s ▁and ▁applied ▁across ▁a ▁product ▁surface . ▁P V DF ▁is ▁widely ▁used ▁in ▁the ▁chemical ▁industry ▁as ▁pip ing ▁for ▁ag gress ive ▁chemical s ▁and ▁high ▁pur ity ▁liqu ids . ▁The ▁P V DF ▁material ▁is ▁used ▁in ▁construction , ▁transport ation , ▁chemical ▁processes , ▁electric ity , ▁batter ies , ▁waste ▁water ▁and ▁treatment . ▁ ▁T ef lon ▁Pol yt etra flu oro eth yl ene ▁( PT FE ) ▁is ▁a ▁synth etic ▁flu or opol ym er ▁of ▁t etra flu oro eth yl ene ▁is ▁commonly ▁recognized ▁under ▁the ▁brand ▁name ▁T ef lon . ▁P TF E ▁is ▁hydro ph ob ic : ▁a que ous ▁liqu ids ▁do ▁not ▁wet ▁the