| Plastic | Density (g/mL) | Flame Color | Smoke | Drip? | Odor | |---------|---------------|-------------|-------|-------|------| | | 1.38-1.39 | Yellow, sooty | Heavy | Yes | Sweet | | HDPE | 0.95-0.97 | Blue base, yellow tip | Little | Yes | Paraffin | | PVC | 1.16-1.45 | Yellow-green | Heavy, acidic | No | HCl (acrid) | | LDPE | 0.92-0.94 | Blue base, yellow | Little | Yes | Paraffin | | PP | 0.90-0.91 | Yellow | Moderate | Yes | Dirty oil | | PS | 1.04-1.09 | Orange, sooty | Heavy black | No | Gasoline | | ABS | 1.04-1.07 | Yellow, sooty | Black smoke | No | Rubber burn |