Cleaning concrete and grease....

[Curtis Pennington]

Anybody done this?.....First time for us in this sceniro.....purple power, Grease eraser,maybe pre scub,extract are my first thoughts. I did find this Western concrete site,that sells chems for situations like this...anybody tried the 2720? http://wc-products.com/

 

[Goomer]

Interior or exterior?

If exterior, you would want to pressure wash it with heat after a sodium hydroxide based degreaser. If exterior and never sealed, best you will might be able to do is lighten it up. The Purple power contains SH but weak, most professional pressure washing guys mix a 12% sh mix using caustic soda beads. Gotta be careful with that stuff (Lye)

Wish I could help with interior.