ChemicalResistance.org ← Search
HomeChemicalsHeptane › Polypropylene (PP)

Heptane Resistance of Polypropylene (PP)

Is Polypropylene (PP) compatible with Heptane? See the chemical resistance rating below.

Compatibility Rating

At 20°C (68°F)
B
Good
Good resistance - suitable for intermittent contact
At 50°C (122°F)
D
Poor
Not recommended - significant degradation expected

Why is PP resistant to Heptane?

PP shows good resistance to Heptane due to its semi-crystalline structure providing good chemical resistance to acids, bases, and organic solvents at moderate concentrations.

⚠️ When NOT to use PP

Avoid using Polypropylene with concentrated oxidizing acids, chlorinated solvents, and aromatic hydrocarbons. Becomes brittle below 0°C.

Comparison Table — All Materials for Heptane

Material20°C50°C
HDPEBC
LDPECD
PPBD
PTFEAA
PVDFAA
FEPAA
ECTFE/ETFEAA
EPDMDD
Viton (FPM)AA
NBRAA
SiliconeNRNR
SS 316AA
SS 304AA
AluminiumAA
PVC RigidBC
PVC FlexibleDD
PMPCC
PolystyreneDD
SANANR
PolycarbonateAB
PETGANR
Acetal (POM)AB
Nylon (PA)ANR
PolysulfoneAB

A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data

🌡️ Temperature Note

Performance degrades significantly at higher temperatures — rated Good at 20°C but only Poor at 50°C. For elevated temperatures, consider a more resistant material. Max service temp: 100°C.

🔄 Better Alternative?

Consider: PVDF or PTFE for higher temperatures. View all materials for Heptane →

FAQ

Is Polypropylene (PP) resistant to Heptane?

Polypropylene (PP) has Good (B) resistance to Heptane at 20°C. Good resistance - suitable for intermittent contact.

Can I store Heptane in Polypropylene (PP) containers?

Yes, Polypropylene (PP) is rated B (Good) for Heptane.

All Materials for Heptane All Chemicals for Polypropylene (PP)