4 NPC Technical Manual, 8th Edition, Section 7.6.1.1, National Plasterers Council, 1000 N Rand Road, Suite 214, Wauconda, IL 60084, info@npconline. White cement meeting ASTM C150, ASTM C595, or ASTM C1157 ("white cement") is used in plaster, concrete, and masonry materials for a variety of architectural and decorative applications.