Compatibility Rating
At 20°C (68°F)
Good
Good resistance - suitable for intermittent contact
At 50°C (122°F)
Good
Good resistance - suitable for intermittent contact
Why is Aluminium resistant to Isopropanol?
Aluminium shows good resistance to Isopropanol due to its protective oxide layer (Al₂O₃) that forms naturally and resists many chemicals.
⚠️ When NOT to use Aluminium
Avoid using Aluminium with strong acids (HCl, H₂SO₄), strong alkalis (NaOH), and mercury compounds which destroy the protective oxide layer.
Comparison Table — All Materials for Isopropanol
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | A |
| LDPE | A | A |
| PP | A | A |
| PTFE | A | A |
| PVDF | A | A |
| FEP | A | A |
| ECTFE/ETFE | A | A |
| EPDM | A | NR |
| Viton (FPM) | A | A |
| NBR | C | C |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | B | B |
| PVC Rigid | A | B |
| PVC Flexible | D | D |
| PMP | A | B |
| Polystyrene | B | B |
| SAN | A | D |
| Polycarbonate | A | B |
| PETG | A | NR |
| Acetal (POM) | A | NR |
| Nylon (PA) | A | NR |
| Polysulfone | A | B |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
FAQ
Is Aluminium resistant to Isopropanol?
Aluminium has Good (B) resistance to Isopropanol at 20°C. Good resistance - suitable for intermittent contact.
Can I store Isopropanol in Aluminium containers?
Yes, Aluminium is rated B (Good) for Isopropanol.