A male 45 years old wants his missing teeth to be replaced. Intraoral examination reveals Kennedy class 4 edentulous maxillary arch. Impression is made with alginate. All of the following are true about the material except:
The compressive strength doubles during the first 4  min after gelation It is a viscoelastic material Its tear strength is increased when the impression is removed along a vertical path with a snap Impression should be removed from the mouth within 3 min