Chemical resistance

The data in the chemical resistance database relates to the behaviour of plastics and sealing materials used in our pressure fittings, valves and accessories, according to the existing medium and the temperature conditions.

Chemical resistance database

No liability or guarantee may be claimed on the basis of the information provided by us. In case of doubt, it is recommended that our products be tested for usability in a testing set-up.

The information is mainly based on German publications and DIN standards and should only be regarded as a guideline for practical applications. It therefore does not offer you any unconditional guarantee of operating reliability for all situations in which mechanical loads, levels of contamination of the medium and the qualitative composition of the sealing materials may play a role.

Material Abbreviation General chemical resistance Permissible
temperature
Constant Temporary
POLYVINYLCHLORIDE
 [non-plasticised]		 PVC

Resistant to most acids, alkalis, salt solutions and water-soluble organic liquids.
Not resistant to aromatic and chlorinated hydrocarbons

60° 60°
POLYPROPENE
 [hot-stabilised]		 PP

Resistant to weak aqueous solutions of acids, alkalise, salts and a large number of organic solvents.
Not resistant to concentrated, oxidising acids.

 90° 110°
NITRILE RUBBER NBR Resistant to oil and petrol. Corrosion through oxidising media. 90° 120°
ETHENE-PROPENE RUBBER
[dutral®]		 EPDM

Good resistance to ozone and weather influences. Excellently suitable for aggressive chemicals.
Harmful effects of oils and greases.

 90° 120°
FLUORIDATED RUBBER
[viton®]		 FPM

These elastomers offer the best resistance of all against numerous chemical influences.

 150° 200°
POLYTETRAFLUORETHENE
 [teflon®]		 PTFE

Resistant to all the media included in the database.
For this reason, it has not been mentioned further on.

 250° 300°

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