That was wrong

it is not a guarantee against every combination of tile

cement residues

Cheap polishing powders cut unevenly and run hot

Nothing is dissolved out of the stone

Razorback FibrePro 5Ltr (formerly PowerClean) Base UOM:EACH That was wrongFibrePro is an economical high performance, low risk, low pH prespray, spotter, and extraction fluid that can be used on carpet and wet cleanable upholstery. FibrePro is a low foaming and free rinsing pre spray that has the performance of products with significantly higher pH. You can be assured that it is a very safe product to use for both you and your clients. This is an advanced formulation for use on all types of carpets and wet cleanable