Technical FAQs

What chemicals can be used with PVC pipe and gaskets?

PVC pipe works great for conveying water and sewage. PVC pipe may be exposed to various chemicals via direct contact with soil contamination or via chemicals in the fluids inside the pipe. The concentration of the chemical is important when considering chemical resistance.


General Resistivity of Typical Gasket Materials

Common Name Styrene Butadiene Rubber (SBR) & IR (Isporene Rubber)/SBR Blend Nitrile Butadiene Rubber (NBR) Ethylene Propylene Diene Monomer (EPDM) Rubber

General Properties

Resistance to water absorption. Excellent elongation. Standard material used for all products.

Resistant to Petroleum-based fluids. Good mechanical performance.

Resistant against Ozone, aging, and most chemicals. Poor resistance to mineral and petroleum-based fluids.

Resistant To

  • Alcohol
  • Most moderate chemicals
  • Organic Acids
  • Ketones / Acetone
  • Aldehydes (i.e. Formaldehyde)
  • Silicone Greases / Oils
  • Petroleum Oils / Fuels
  • Fats
  • Hydraulic Fluids
  • Animal and vegetable oils
  • Ozone & UV
  • Brake fluids
  • Strong and oxidizing chemicals (i.e. Peroxides, Nitrates)

Attacked By

  • Most Solvents & Oils
  • Concentrated Acids
  • Ketones (i.e. Acetone)
  • Halogenated Hydrocarbons (i.e. Chloroform, Halon)
  • Brake fluids
  • Strong acids
  • Ozone / weathering
  • Mineral oils
  • Petroleum Oils
  • Fuels

*Note: Westlake Pipe & Fittings does not offer Neoprene gaskets as of 12/2019

There is also a detailed Chemical Resistivity chart available in Chapter 3 of the Handbook of PVC Pipe Design and Construction by Uni-Bell. Three chapters are available for free download.