General Information :
Bare concrete floors are actually very porous. Oil, grease and dirt will permanently stain concrete if not cleaned off soon enough.
Tools & Technique :
Heavy duty degreaser/cleaners will generally do a good job keeping up the concrete’s appearance. Use according to directions.
Try to give the chemical time to work – scrubbing may be necessary. Rinse off with water.
Sealed concrete must be treated more carefully. Harsh cleaners – such as T.S.P. – can damage the seal. Try a milder cleaner to start. Since the floor is sealed it will clean-up much easier than bare concrete.
Try to avoid messy clean-ups by putting cardboard under a oil-drip or lawnmower. Frequent sweeping gets rid of surface dirt before it has a chance to grind into the concrete.
Specialized Tools & Chemicals :
When possible pressure washing is an effective cleaning method for concrete. Be careful on older concrete – too much pressure can break it apart.