The liners are made of EPE foam with a closed-cell structure.
EPE foam is produced through the extrusion process.
Application:
For sealing closures used on bottles of carbonated and non-carbonated non-alcoholic beverages, including mineral waters and juices, as well as alcoholic beverages with an alcohol content of up to 95%.
Available diameters:
From 14,55 mm up to 40,60 mm with tolerance ± 0,15 mm
From 42,00 mm up to 57,37 mm with tolerance ± 0,25 mm
Another diameters available on request.
Technical parameters:
- Density: 250 – 500 kg/m³ with tolerance ±10%
- Thickness: 1,3 – 4,0 mm with tolerance ±10%
- Flatness: max. 10%
Physical and mechanical properties:
| Properties | Standard | EPE 250 | EPE 300 | EPE 350 | EPE 400 |
|---|---|---|---|---|---|
| Bulk density [kg/m³] | ISO 7214 | 249 | 303 | 348 | 400 |
| Compression [kPa] at: | ISO 7214 | ||||
| 10 % deformation | 9 | 103 | 245 | 420 | |
| 25 % deformation | 114 | 307 | 624 | 912 | |
| 50 % deformation | 381 | 861 | 1884 | 2484 | |
| Deformation strength [MPa] | ISO 7214 | ||||
| Longitudinal | 2,25 | 3,14 | 3,53 | 4,08 | |
| Transverse | 2,65 | 2,82 | 3,28 | 4,08 | |
| Elongation at break [%] | ISO 7214 | ||||
| Longitudinal | 132 | 144 | 158 | 181 | |
| Transverse | 99 | 170 | 198 | 213 | |
| Permanent deformation under 25% compression, 23 °C, 22 h [%] | ISO 7214 | ||||
| 30 min | 11,6 | 9,9 | 9,2 | 8,2 | |
| 24 h | 4,0 | 5,1 | 5,3 | 5,4 |