Which type of impression material expands and contracts with no change in
structure or shape?
Calcium sulfate is the chemical reactor for:
b. Elastomeric impression materiall.
d. Impression wax.
Select the impression material that uses water and powder in a one to one ratio.
a. Elastomeric impression material.
b. Modeling plastic.
d. Impression paste.
e. Alginate-type hydrocolloid.