Chemical Compatibility Guide

ARO is pleased to present this selection guide to provide a convenient and informative reference tool for diaphragm pump and piston pump selection. This guide was compiled from information provided by material suppliers and manufacturers.

A = Excellent, B = Good, C = Fair to Poor, D = Not recommended

X or Brackets around a rating letter indicate that no data is available, but the ratings are made on the basis of exposure test in similar chemical groups.

The chemical compatibility listings are intended as a guide only. We assume no liability for the accuracy of their use. The user should test under their own operating conditions to determine the suitability of any compound and material in a particular application.

Thermoplastic Elastomers (TPEs) vs Thermosetting Rubber Diaphragms

Traditional thermoset includes Buna-N (TS), EPR, Neoprene®, Viton®

Thermoplastic Compounds (TPE)

Thermoset (TS)

Polytetrafluoroethylene (PTFE)

Halogenated Solvents Explosion Hazard

Wet End Material Compatibility Guide