High quality, copolymer-based putty for walls and ceilings to improve adhesion between the wall and top coat material. ARACO AC PUTTY can be applied manually by steel trowel or stucco knife. After drying, it forms smooth putty with excellent adhesion properties to cement-based plaster, cement-based putties, and gypsum boards. It’s specially manufactured for the painter to repair and touch-up surfaces, both old and new, prior to painting. ARACO AC Putty meets the following technical material requirements when tested in accordance with ASTM C661, ASTM C719, ASTM C793, A STM C794, and ASTM D4758.