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Cyclohexane Chemical Resistance

Resistance ratings for 24 plastics, elastomers and metals at 20 °C and 50 °C.

At a glance

Ratings at 20 °C.

Rated A, very good resistance
PTFE, PVDF, Viton (FPM), NBR, SS 316, SS 304, Aluminium, FEP, ECTFE/ETFE, Nylon (PA), Acetal (POM), PVC Flexible, PETG, SAN (14)
Rated B, good resistance
PVC Rigid (1)
Rated C, limited resistance
HDPE, PP, LDPE, Polycarbonate (4)
Rated D, not resistant
EPDM, Polystyrene, Polysulfone, PMP (4)
No data in the source
Silicone
Rated lower at 50 °C than at 20 °C
HDPE (C → D), PP (C → D), PVC Rigid (B → C), LDPE (C → D), ECTFE/ETFE (A → B), SAN (A → C)

Rating profile by material family

Cyclohexane: Rating profile by material familyThermoplastics: 5 A, 1 B, 4 C, 3 D. Fluoropolymers: 4 A. Elastomers: 2 A, 1 D, 1 no data. Metals: 3 A.Thermoplastics (13)Thermoplastics: 5 × A, very good resistance (PVC Flexible, SAN, PETG, Acetal (POM), Nylon (PA))A 5Thermoplastics: 1 × B, good resistance (PVC Rigid)Thermoplastics: 4 × C, limited resistance (HDPE, LDPE, PP, Polycarbonate)C 4Thermoplastics: 3 × D, not resistant (PMP, Polystyrene, Polysulfone)D 3Fluoropolymers (4)Fluoropolymers: 4 × A, very good resistance (PTFE, FEP, PVDF, ECTFE/ETFE)A 4Elastomers (4)Elastomers: 2 × A, very good resistance (Viton (FPM), NBR)A 2Elastomers: 1 × D, not resistant (EPDM)D 1Elastomers: 1 × no data (Silicone)– 1Metals (3)Metals: 3 × A, very good resistance (SS 316, SS 304, Aluminium)A 3
A very good resistanceB good resistanceC limited resistanceD not resistantno data
Number of materials in each family with each rating at 20 °C.

Effect of temperature, 20 °C to 50 °C

Cyclohexane: Effect of temperature, 20 °C to 50 °CHDPE C → D; LDPE C → D; PP C → D; PVC Rigid B → C; SAN A → C; ECTFE/ETFE A → B.ABCDHDPE: C at 20 °C, D at 50 °CHDPELDPE: C at 20 °C, D at 50 °CLDPEPP: C at 20 °C, D at 50 °CPPPVC Rigid: B at 20 °C, C at 50 °CPVC RigidSAN: A at 20 °C, C at 50 °CSANECTFE/ETFE: A at 20 °C, B at 50 °CECTFE/ETFE
20 °C50 °C
Materials whose rating differs between 20 °C and 50 °C. Materials not shown keep their rating or have no 50 °C value.

Substance

CAS number
110-82-7
Formula
C6H12
Hazard symbols in the source
F (flammable) (pre-GHS European symbols; check the current safety data sheet)
Flammable
yes
Also listed as
Naphthenes (Cycloalkanes)
Name in the source (German)
Cyclohexan

Resistance table

Material20 °C50 °CRemark
Thermoplastics
HDPECD
LDPECD
PPCD
PVC RigidBC
PVC FlexibleA–
PMPDD
PolystyreneDD
SANAC
PolycarbonateCC
PETGA–
Acetal (POM)AA
Nylon (PA)A–
PolysulfoneDD
Fluoropolymers
PTFEAA
FEPAA
PVDFAA
ECTFE/ETFEAB
Elastomers
EPDMDD
Viton (FPM)A–
NBRA–
Metals
SS 316AA
SS 304AA
AluminiumAA

Not rated in the source, so not in the table: Silicone

Rating scale

A rating marked * is an estimate in the source, not a test result. An estimate is given as one value without a temperature.

Frequently Asked Questions

Which materials resist Cyclohexane at high concentrations?

The materials with an A rating (resistant) for Cyclohexane at 20 °C are: PTFE, PVDF, Viton (FPM), NBR, SS 316, SS 304, Aluminium, FEP. These can generally be used in direct contact.

Which materials should be avoided with Cyclohexane?

Materials rated D (not resistant) for Cyclohexane are: EPDM, Polystyrene, Polysulfone, PMP. These should not be used in contact with Cyclohexane.

Does temperature affect chemical resistance to Cyclohexane?

Yes. 6 of 18 tested materials show a worse rating at 50 °C than at 20 °C for Cyclohexane. Materials affected include: HDPE, PP, PVC Rigid, LDPE, ECTFE/ETFE, SAN.

Is PTFE safe for Cyclohexane?

PTFE is rated A for Cyclohexane at 20 °C. A rating of A means resistant, B means limited resistance, C means partly resistant, and D means not resistant.

About this data

The ratings come from the chemical resistance list published by Bürkle GmbH, which compiled them from raw-material manufacturers’ data. They describe laboratory tests on the raw material at 20 °C and 50 °C.

A finished part also sees pressure, mechanical stress, welds and mixtures that a laboratory test does not. Treat the rating as a first filter and test under your own conditions before relying on it.

Chemicals with a similar resistance profile

Same 20 °C rating on the share of materials shown.