Evening Republican, Volume 22, Number 28, Rensselaer, Jasper County, 1 February 1919 — New Finish for Concrete Floors. [ARTICLE]

New Finish for Concrete Floors.

A new polish for concrete floors where a hard surface and a dustless one is desired consists of 95 per cent of iron dust or iron flour. It is added to the dry cement in the proportioh of 15 to 25 pounds to each 100 pounds, and one part of the mixture is used with two parts of sand. This preparation is applied as a top coat to a thickness of one-half to one inch. It forms a hard and durable floor, claimed tb be waterproof and not slippery. This composition is also made use of where it is desired to make new concrete units with old.