Description
MARVALLOY is a high copper dental silver alloy consisting of a constant ratio of spherical and lathe cut particles. As a result of this, great handling characteristics are obtained. Its high early strength together with its low static creep value lowers the risk of marginal fracture and assures long-lasting marginal integrity. It does not contain zinc thus eliminating problems due to moisture and avoids the corrosive gamma-2 (γ-2) phase. Tin dissolves in mercury and is preferentially bound to copper thus forming Cu6Sn5 which inhibits formation of the corrosive gamma -2 phase (Sn8Hg).
Chemical Composition
Silver (Ag) 43%, Tin (Sn) 31.5%, Copper (Cu) 25.5%
Particle Shape-Spherical /Lathe cut
Ratio – Alloy : Hg = 1 : 0.99
Indications
Posterior restorations
Characteristics - Advantages
Excellent condensability
Smooth carving
High resistance to wear
Long lasting restoration
Economical restorative
Technical Data
| Compressive strength 1 hour (MPa) | 235 |
| Compressive strength 24 hour (MPa) | 450 |
| Static creep (%) | 0.10 |
| Dimensional change (%) | 0.012 |
| Working time | 4'30"- 5'00" |
| Trituration time - Silamat mixer | 12" |
| Item No. | Product Description | Item No. | Product Description |
| Marvalloy Powder | Marvalloy Capsules | ||
| 100110003 | 30g | 100111005 | No.1 x 50 |
| 100110005 | 50g | 100112005 | No.2 x 50 |
| 100110010 | 100g | 100113005 | No.3 x 50 |
| 100110025 | 250g | 100111050 | No.1 x 500 |
| 100110050 | 500g | 100112050 | No.2 x 500 |
| 100113050 | No.3 x 500 |
Capsule caps are colour coded to distinguish easily the spill sizes
Single Spill / No 1 - Yellow
Double Spill / No 2 - Orange
Triple Spill / No 3 - Red
