Alginate dedicated for dental impression materials is a natural polysaccharide polymer extracted from marine brown algae. It can react with calcium salts to form a thermally irreversible gel. The commonly used alginates include sodium alginate and potassium alginate, which are widely applied in dental impression materials.
Main components of alginate impression materials: Alginate, Gypsum, Diatomaceous earth
Mesh Size | Solution | Viscosity | Strength |
200 | 1% | 200-350 CPS | No requirement |
200 | 1% | >800 CPS | No requirement |
200 | 1% | 200-350 CPS | >700 |
Mesh Size | Solution | Viscosity |
200 | 1% | 200-700 CPS |
Add sodium alginate (or potassium alginate), gypsum, diatomaceous earth, and other ingredients in proportion, then mix thoroughly.
1> Select alginate with an appropriate viscosity range according to different formulas.
2> Ensure uniform particle size compatibility; the particle sizes of alginate and other auxiliary materials should match each other.
3> Pay attention to moisture prevention; keep the product and working environment dry.
4> Pay attention to the pH value of auxiliary materials to maintain the overall pH of the product at neutral.
