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Sodium Hydroxide (Caustic Soda) Resistance of PVDF

Is PVDF compatible with Sodium Hydroxide (Caustic Soda)? 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)
B
Good
Good resistance - suitable for intermittent contact

Why is PVDF resistant to Sodium Hydroxide Caustic Soda?

PVDF shows good resistance to Sodium Hydroxide Caustic Soda due to its fluorinated polymer backbone providing excellent resistance to acids, bases, and organic solvents.

⚠️ When NOT to use PVDF

Avoid using Polyvinylidene Fluoride with strong bases (NaOH >10%), ketones, esters, and amines. Service temperature up to 150°C.

Comparison Table — All Materials for Sodium Hydroxide Caustic Soda

Material20°C50°C
HDPEAA
LDPEAA
PPAA
PTFEAA
PVDFBB
FEPNRNR
ECTFE/ETFENRNR
EPDMANR
Viton (FPM)DD
NBRCD
SiliconeNRNR
SS 316BB
SS 304BB
AluminiumDD
PVC RigidNRNR
PVC FlexibleNRNR
PMPNRNR
PolystyreneNRNR
SANNRNR
PolycarbonateDD
PETGDD
Acetal (POM)CC
Nylon (PA)AC
PolysulfoneNRNR

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

🌡️ Temperature Note

Good resistance at both 20°C and 50°C. Maximum service temperature for this material is 150°C — above this, degradation risk increases significantly.

🔄 Better Alternative?

Consider: PTFE for broader resistance. View all materials for Sodium Hydroxide Caustic Soda →

FAQ

Is PVDF resistant to Sodium Hydroxide (Caustic Soda)?

PVDF has Good (B) resistance to Sodium Hydroxide (Caustic Soda) at 20°C. Good resistance - suitable for intermittent contact.

Can I store Sodium Hydroxide (Caustic Soda) in PVDF containers?

Yes, PVDF is rated B (Good) for Sodium Hydroxide (Caustic Soda) at room temperature.

All Materials for Sodium Hydroxide (Caustic Soda) All Chemicals for PVDF