Bonding surfaces on concrete produced by bonding Con-Tex, not a bonding paint.
This is a trade pamphlet from 1926 issued by the Concrete Surface Corporation, aimed at builders and contractors who need to bond new concrete to old. Its pictures are black-and-white photographs of concrete walls, pavements and a pillar with applied Con-Tex, showing surface texture before and after treatment; a designer might take from them the look of weathered, cracked or pebble-dashed masonry as texture reference.
