What Is Gypsum Made Out Of? Gypsum, common sulfate mineral What are the 3 main forms of gypsum? The major types of Gypsum products that are available are, Type I — Impression Plaster. Type II — Dental Plaster. Type III — Dental Stone Type IV — Improved Dental Stone or Die stone or High Strength
What Is Green Gypsum Board? Commonly known as moisture resistant gypsum board, M-R board, or green board, ProRoc® Moisture Resistant Gypsum Board products are designed to provide better moisture resistance. … This combination provides an effective barrier to moisture penetration. The product is recognizable by its signature green face paper. What is the difference between