Daramic® HP™
Daramic HP is a high-performance polyethylene battery separator designed for starting, lighting, and ignition (SLI) lead-acid battery applications. Daramic HP is specially formulated to deliver excellent puncture and oxidation resistance, while also containing amorphous silica for high porosity providing lower electrical resistance.
Features:
- Excellent for high under-hood temperature applications
- High puncture and oxidation resistance
- Lower backweb thickness
- Available with glass mat for heavy duty applications
- High porosity for lower electrical resistance
Benefits:
- Improved yields and lower scrap rates
- Lower risk of battery failures with thinner backweb
- Increased processing speeds
- Improved overall battery electrical performance
- Reduced acid displacement
Features:
- Excellent for high under-hood temperature applications
- High puncture and oxidation resistance
- Lower backweb thickness
- Available with glass mat for heavy duty applications
- High porosity for lower electrical resistance
Benefits:
- Improved yields and lower scrap rates
- Lower risk of battery failures with thinner backweb
- Increased processing speeds
- Improved overall battery electrical performance
- Reduced acid displacement
| Attributes | Units | Standard PE Separator | Daramic HP |
| Backweb Thickness | mm | 0.200 | 0.200 |
| Puncture Resistance | N | 7.5 | 13 |
| Oxidation STability - CMD elongation after | % | Min 50 (20h PEROX) | Min 100 (20h PEROX) |
| Electrical Resistance | mΩ-cm2 | 70 | 55 |
| Porosity | % | 60 | 60 |
| Elongation CMD | % | 350 | 350 |
| Backweb Oil | % | 11-12 | 11-12 |
| Total Oil | % | 14-17 | 14-17 |
| Moisture Content | % | 3 | 3 |
| Dimensional Stability | % | -0.5 | -0.5 |
