Formula of seaweed impression: powder type and paste type.

　　Formula of seaweed impression: powder type and paste type. Today, Nanshan Biotechnology, a sodium alginate manufacturer, will explain it to you in detail. Usually, sodium alginate impression materials are powder type and paste type. The powder is prepared quantitatively by dry ingredients, and is used after being mixed with water in clinical application. The main components of paste are paste and cementing agent. In clinical application, paste and cementing agent should be mixed according to the proportion set by the manufacturer before use.
　

　　450g of sodium alginate, 400g of sodium carbonate, 20ml of thymol phenolphthalein solution (prepared by adding 10g of thymol, 5g of phenolphthalein and 100ml of ethanol), and 1000ml of water.

　　1. Powder

　　15% of sodium alginate, 15% of calcium sulfate dihydrate, 2% of sodium tripolyphosphate and 68% of diatomite.

　　When in use, add water to make paste, put it into oral cavity, take it out and soak it in 10% ~ 20% magnesium sulfate solution for 10 ~ 15 minutes.

　　2. Paste

　　A medicine

　　Water 15

　　Sodium carbonate 0.9

　　5% sodium alginate solution 25

　　B medicine

　　Sodium sulfate 0.7

　　Calcium sulfate 5

　　Magnesium sulfate 2

　　Zinc oxide 2.6

　　When in use, the medicine A and the medicine B are mixed for 1-2 minutes, injected into the dental tray, put into the oral cavity for 3 minutes, solidified and taken out.