LIGHTWEIGHT GYPSUM BOARD PRODUCT AND METHOD OF MANUFACTURE

摘要

Lightweight gypsum board product can be produced by modifying the calcined gypsum prior to introduction in a gypsum slurry and introducing a foaming agent by the use of a foam generator and high pressure air. The foaming agen t has uniform and stable size and distribution of bubbles. The foam imparts these advantageous void properties and results in a lightweight gypsum produ ct that has adequate strength and nail pull characteristics.