PVDF Versus PVC, CPVC & Metal Pipe

Comparing Kynar PVDF with PVC and CPVC

  • PVDF operates at higher temperatures and is suggested up to 284 °F; CPVC up to 200 °F and PVC only to 140 °F.
  • PVDF has increased mechanical durability over both PVC and CPVC.
  • PVDF is more resistant to permeation and to a greater number of chemicals.
  • PVDF equipment is fabricated and approved for food grade and ultra pure use. 
  • PVDF materials can meet ASTM fire and smoke spread requirements.
  • PVDF is unaffected by ultraviolet UV and exhibits increased resistance against nuclear radiation.
  • PVDF is joined through heat fusion welding that produces leak free connections; PVC and CPVC are joined via specific primers and cement.

Comparing Kynar PVDF with Metal Pipe

  • PVDF is inert, does not require passivation and will never rust while metal plumbing is susceptible to environmental / solution corrosion and rusting.
  • PVDF is lightweight and resistant to abrasion compared to metal pipes that are generally heavy and susceptible to abrasive materials.
  • PVDF installation and costs are similar to metal and stainless steel.
  • PVDF is inert to hydrogen gas formation and considered suitable for chlorine based compounds such as hydrochloric / muriatic acid, HCl.

Common Chemicals & Solutions Used with PVDF

Acetic Acid < 50%

Chlorites, Hypochlorites

Nitric Acid

Alcohols (Methyl, Ethyl, etc.)


Phosphoric Acid

Bromine (aqueous)

Chromic Acid

Salicylic Acid

Bromine (gas)

Hydrobromic Acid

Salt Water, Brines


Hydrochloric Acid

Solvents (aliphatic, aromatic)

Chlorinated Compounds

Hydrofluoric Acid

Sodium Hypochlorite, Bleach


Methyl Chloroform

Sulfuric Acid < 98% (heated / non)

For more information on PVC, CPVC, pipe sizes and other details, visit our Resource Center.

Other Resources

What is PVDF | Manufacture, Properties & Common Uses PVDF Measurement Table | Pipe Sizes and Weights Chemical Piping Kynar PVDF Pipe & Fittings for Sale