Short answer
Chemical suitability is assessed based on concentration, temperature, contact time and mode of use in addition to the chemical's name. A material that appears suitable in a table may not give the same result at a different ratio or temperature. Table footnotes are an inseparable part of the technical value.
Technical explanation
Chemical resistance tables are prepared with specific assumptions and limitations. Continuous contact, intermittent transfer and a cleaning cycle are not the same condition. Trelleborg's statements on cleaning agents note that even compounds within the same elastomer family can show different results. For this reason, it is not correct to turn a general assessment for a chemical-material pair into an assembly approval without knowing the exact product and condition. The inner tube, seals and metal parts may require separate assessment.
Topic-specific checkpoints
| Item | Description |
|---|---|
| Identity | Chemical name, mixture and related document. |
| Concentration | Actual ratio, unit and range of variation in the field. |
| Exposure | Temperature, duration, frequency and continuous/intermittent use. |
| Scope | The table's assumptions and the product covered by the manufacturer's response. |
How is it assessed in practice?
The recommended compatibility record includes the full name of the chemical, the basis on which the percentage is given, temperature, contact time and the assumptions of the source table. For example, a stronger dilution of a cleaning product or an increase in process temperature should not be silently changed under the same record. A new condition opens a new assessment. If a manufacturer's response states only room temperature, do not present it as approval for a hot process; have the open condition confirmed separately.
Original editorial recommendation; not a clause of a standard.
Frequently asked questions
Is a more dilute chemical always less aggressive?
Do not make such a general ranking. Chemical system and material behavior depend on the condition; relevant data or a manufacturer assessment should be sought for the actual concentration.
Source coverage
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S020
Chemical Resistance Chart Gates · accessed 2026-10-19 PDF page 2 / printed page 1: Chemical Resistance Table, notes
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S037
CIP and SIP Trelleborg · accessed 2026-10-19 Aggressive chemicals; CIP facts; research results