Homasote® board consists entirely of paper fibers converted from recycled wastepapers. Added to this are ingredients that give it the superior weather-resistant features for which Homasote® board has become so famous. The small amount of newsprint ink remaining through the processing gives the board its grayish tint.

No other board is manufactured like Homasote®, nor does any other match its physical properties. The result is a weather-resistant, structural, insulating, extremely durable board.

Utilizing recycled wastepaper as raw material, Homasote manufactures basic board stock by first repulping the wastepaper. The raw material is conveyed to a hydrapulper, where hot water is added. A high-speed rotor in the bottom of the hydrapulper breaks down the raw material into pulp. The refined slurry (98% water, 2% pulp) is then fed to holding tanks.

From the holding tanks, the refined slurry is pumped to fill forming molds 8' x 12' in size. When the forming mold closes, water is removed from the slurry leaving a large, thick mat. The mat is then conveyed to a large press, where time and pressure establish the proper thickness while removing more water.

These large 8' x 12' sheets are then conveyed through a 225' dryer for a period of 2 to 6 hours, depending on thickness. Additional water is removed as the sheet is dehydrated to 2% moisture content. The sheet is now board stock and is cut to size and made into a variety of Homasote products.

Our Material Safety Data Sheet is available for you to review and print. Email us, if you would like us to send you a copy.