This is especially true when the office changes manufacturers. The manufacturer will usually add the color yellow or buff to the dental stone, so it is easy to distinguish it from dental plaster. Dental plaster or laboratory plaster is softer and is used for study models. Dental plaster or laboratory plaster has a mix ratio of 60ml of water to 100g of plaster. Again, this ratio will change slightly depending on the manufacturer.
Dental plaster is usually white in color.
Gypsum products need to be stored in a cool, dry place. If these products are exposed to the open air, they will absorb moisture from the air and will deteriorate. It is also important to never put these products down the sink. The soft gypsum will get hard under water and can block the pipes. Room temperature water is used when mixing gypsum.