
VITROLUX eFLEX is a pure, highly crystalline ACETAL copolymer (polyacetal / POM) milling resin. Its high tensile and flexural strength, fatigue resistance, hardness and very low moisture absorption make it ideally suited for milling metal-free removable partial DENTURE frameworks and resilient clasps, provisional crowns and bridges, and bite splints.
| Density | 1.41 g/cm³ |
| Tensile Strength | 61.00 MPa |
| Tensile Modulus | 2820.00 MPa |
| Flexural Strength | 90.00 MPa |
| Flexural Modulus | 2620.00 MPa |
| Moisture Absorption | 0.22 wt% |
| Major connector | 0.7 mm minimum |
| Saddle area | 0.5 mm minimum |
| Clasp — anterior tooth | 2.0 mm where the clasp joins the framework, thinning to 0.7 mm at the tip |
| Clasp — posterior tooth | 2.5 mm where the clasp joins the framework, thinning to 0.7 mm at the tip |
| Temporary crown & bridge | 0.5 mm minimum thickness · 0.03 mm cement gap |
| VITROLUX eFLEX | Pressing Dental Dental D | Yamahachi ACETAL | DETAX Acrydisc | |
|---|---|---|---|---|
| Material | ACETAL copolymer (POM) | ACETAL (POM) | ACETAL (POM) | ACETAL (POM) |
| Flexural strength | 90 MPa | Varies | Varies | Varies |
| Tensile strength | 61 MPa | Varies | Varies | Varies |
| Moisture absorption | 0.22 wt% | Low | Low | Low |
| Metal-free RPD / clasp | Yes | Yes | Yes | Yes |
| Shade range | A0–B1, CLEAR | Tooth + clear | Tooth + clear | Tooth + clear |
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