Show new insulating plaster there is now avail available able an insulating plaster developed to meet the demands of modern construction for an efficient and inexpensive material for insulation against heat cold and sound it is used in place of regular plaster on walls and ceiling and costs only a little more it bonds securely to any plaster base and may be applied over old or finished surfaces when applied to the proper thickness this material prohibits the passage of unwanted noises through walls and ceilings |