Masonry Magazine January 1965 Page. 9
WHY DOES IT SPREAD SO EASILY? SAME REASON IT MIXES SO FAST!
US
O
AIR ENTRAINING
MORTASEAL
MASONS LIME
DOUBLE HYDRATED
QUICK SOAKING
SUPER SPREAD
UNITED STATES GYPSUM COMPANY
ENTRAINED AIR.
New Air Entraining MORTASEAL Masons Lime is a double-hydrated lime for mixing with Portland cement, sand, and water... with one big bonus. It's air entraining-a manufacturing process that permits a controlled volume of air bubbles to mix with the mortar automatically. This entrained air goes completely through the mix and takes the water with it. The result is a mortar that holds water much better - a mortar that is extremely plastic and much easier to work, much easier to trowel.
It's easier to mix, too. Requires no slaking or soaking. So it's ready for use right after mixing with water-just 15 minutes from bag to board.
You get still more: less dropping loss, better bonding, more "give" to absorb vibration, less efflorescence, substantial saving in labor costs.
See your U.S.G. dealer or sales representative, or write UNITED STATES GYPSUM to us at 101 South Wacker Drive, Dept. M-51, Chicago, Illinois 60606.
THE GREATEST NAME IN BUILDING
MASONRY
January, 1965