Erkodur-al is a foil material optimized for the production of aligners. It is a viscoelastic hard, break-resistant material with excellent dimensional stability – even under tension. Compared to the tried-and-tested Erkodur, Erkodur-al is approximately 35% softer with lower initial force and thus less feeling of tension during insertion. This not only means more comfort for the patient, the elasticity of the material also allows the effective force for correcting the misalignment of the teeth to last longer. The result is an effective but also gentle correction. The very flat force-loss curve measured in the comparison shows that Erkodur-al has a more favorable force-loss curve than most known materials. Even multilayer materials do not show a better course curve compared to Erkodur-al.
- Density: 1.19 g/cm3,
- Modulus of elasticity: 1462 MPa,
- Elongation at break: 179%,
- Water absorption: 0.5%,
- Temperature resistance: 85°C
- Available thicknesses: (0.6/0.8/1.0 mm)