As base film we use a biaxially oriented high purity polyester film (PET) which was developed especially for high dielectric demands.
This film can be metallized either with pure aluminum (99.98 %), zinc or zinc-aluminum alloy.
The electric resistance (metallization strength) and the kind of metallization will be according to the customer's requirements.
Here are our standard kinds of metallization available:
Other designs like multiple internal series, step, tapered and segment metallization and many others on request.
Type designations Polyester PT …
|PTMA (W)||Aluminum Metallized (wave cut)|
|PTMAD||Aluminum Metallized double side|
|PTMARD||Aluminum Metallized double side with Heavy Edge|
|PTMAR (W)||Aluminum Metallized with Heavy Edge (wave cut)|
|PTMAZR (W)||Aluminum Metallized with Zinc Heavy Edge (wave cut)|
|PTMZ (W)||Zinc Metallized (wave cut)|
|PTMZR (W)||Zinc Metallized with Zinc Heavy Edge (wave cut)|
|Nominal thickness (μm)||0.9 / 1.2 / 1.4 / 1.7 / 1.9 / 2.4 / 3.0 / 3.5 / 4.0 / 4.8 / 6.0 / 7.0 / 8.0|
|Special thickness (μm)||3.3 / 4.3 / 4.5 / 4.6 / 5.2 / 5.5 / 8.5 / 9.0 / 12 / 15 / 19 / 22 / 23|
|Slitting width||≥ 2.25 mm|
|Free margin||≥ 0.25 mm|
|Inside core diameter||75 mm|
|Roll outside diameter||155 mm / 165 mm / 180 mm / 200 mm / 240 mm / 300 mm / 330 mm|
|Typical properties||high mechanical strength. high dielectric and impulse strength. high thermal stability. high dielectric constant – and with that. high capacity with small capacitor volume|