Film Type
g/cc
μ
GSM (g/m²)
—g/m²
Film Density Reference
| Film | Density | 20μ = GSM |
|---|---|---|
| BOPP | 0.905 | 18.10 |
| PET | 1.390 | 27.80 |
| PE/LLDPE | 0.920 | 18.40 |
| CPP | 0.900 | 18.00 |
| Nylon | 1.140 | 22.80 |
| Alu Foil | 2.700 | 54.00 |
Frequently Asked Questions
GSM = (Micron × Density) ÷ 10. You need the film density value for the correct film type. Select the film from the dropdown and the density is filled automatically.
BOPP has density 0.905 g/cc. GSM = (20 × 0.905) ÷ 10 = 1.81 GSM per micron, so 20 micron BOPP = 18.10 GSM.
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