Masonry Magazine March 1968 Page. 10
Morta-Lok A/E mortars stay "fat" and "sticky" even on long carries to the bricklayer. They provide extra long board life with minimum retempering, even in hot weather, high humidity conditions.
Because of high sand carrying capacity, air entrained Morta-Lok A/E mortar has reduced "initial" and "drying" shrinkage. It mixes easily and is free flowing without separation of the water, making it easy to spread.
Morta-Lok A/E mortars are extra plastic, spreading easily on the brickwork and providing a uniform "bedding" and complete bond at a high rate of production.
Experienced masonry foremen specify air entrained Morta-Lok for the tough jobs. If you want increased production and higher quality of workmanship, join the profit makers and specify Morta-Lok A/E for your next job! ROCKWELL LIME CO., CHICAGO, ILLINOIS 60601
ROCKWELL MORTA-LOK A/E...(AIR ENTRAINED) PROVIDES UTMOST WATER RETENTION AND WORKABILITY WITH UNIFORM, COMPLETE AND DURABLE BOND.
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masonry March, 1968