L & M Construction Chemicals now offers E-Con in a new, highly concentrated (eleven to one) quart size six-pack, perfect for the standard 3 1/2 gal hand-help, pump-up pressure concrete finishing sprayers. E-Con is a concentrated liquid placed on fresh concrete for a thin, continuous film which prevents premature and rapid loss of moisture from the concrete surface, minimizing the negative effects of rapid drying conditions due to high temperature, low humidity, high winds and direct sunlight. New concentration is also available in 5-gal. pails, 55-gal. drums, or 1-gal. jugs.