Question

What is the purpose of adding retarders to plaster of paris?

• A. To accelerate the setting time
• B. To slow down the setting time
• C. To change its color
• D. To make it more transparent

Hint:

Retarders in plaster of paris slow down the setting time, allowing more time for mold-making.

Answer 1

The Correct Option is B

Retarders slow down the setting time of Plaster of Paris, providing more time for mold-making. They are not for color changes or transparency.