If Scali doesn't step up then you can camoflauge it with paint. Experiment beforehand with a tube of black, grey and white acrylic paint and a stippling brush. Mix up different blends until you have the right colours and stipple it on. Start with a base coat of grey. Let it dry on an old tile or similar before assessing the colour as correct. The good thing is that you can wipe it straight off with water if you make a mistake or it doesn't match. When we replaced our kitchen there was a patch of raw pine exposed on the floor. I painted it with watered down acrylic paints and painted in some knots with brown paint and no one has ever picked it. Took a few tries to get it perfect. I assure you it won't stand out like it does now. i've even used texta to hide scratches on furniture and polished floors. You might consider that as an option too. Lastly I spilt scented oil on a my dressing table and it created a white film. I put some Brasso on a piece of cloth figuring I had nothing to lose and it's supposed to work on water rings on furniture. It took the white film straight off with no damage. You could try some on a cotton bud to see if it helps. You never know. Good luck.

hi yes batches are different from batch to batch, but the finishers, toner, and self levellers, grout, are all different and have differing impact of the finish. Two of my Grandsons work in the concrete polishing industry (have for years)and come across this problem every other day. They are so very used to fixing up concrete pourers blues. I do know of some extreme difficulties (some over forty years old under carpet that have had the same problem) that have given my boys a hard time. However, at the end of it, using the right gear, you can literally see your face in the reflection plus the reflected image via the window.

Hi Chris The cheapest option is Grind & Seal, but we usually recommend Mechanically Polished Concrete for inside of a home. This is by far a better option, if you were to go for a Matte or Satin finish it is less expensive than a higher gloss finish. Mechanically Polished Concrete does not have a top coat sealer requiring drying and curing time and does not need re-applying in the future which will save time and money in the long run. Because Polished Concrete does not require drying or curing time it can be used as soon as the process is completed unlike the Grind & Seal option. All floors are slippery when wet, a non slip agent can be added to a top coat sealer which would be the Grind & Seal method which we do apply in a shower area if there is not a shower base. Polished Concrete in Matte and Satin finish does have a very good slip rating, has no grout lines as with tiled floors where dust can get trapped therefore it is a wonderful easy to clean flooring solution. Hope this helps, I have provided some details regarding the 2 main processes below There are 2 different finishing processes / methods that are commonly called Polished Concrete, they are very different so it is important that you know the difference & which process/method you want and which is being used on your concrete Polished Concrete - 12 to 17+ step process During this process the concrete is ground to the desired level of stone exposure. After grinding the concrete surface, the Polished Concrete process begins. This process has a densifier applied in multiple stages that is absorbed into the concrete which hardens and strengthens the concrete. A Polished Concrete Floor is Polished in Multiple stages in a Refining Process using diamond tooling & resin pads. A penetrating sealer is applied in the final buffing stage to complete the process The "Polished Concrete" process has "NO TOP COAT SEALER" applied therefore there is no drying or curing time required so your space can be used as soon as the process is completed Grind & Seal (a 3 to 4 step process) This is NOT Polished Concrete. Grind & Seal is often referred to as Polished Concrete, this is the cheaper substitute that gives a "Polished Concrete Look" With the Grind & Seal method the concrete is ground to the desired level of stone exposure and a TOP Coat Sealer is applied such as water based, solvent based, urethane, acrylic or epoxy requiring 5-7 days to dry & cure

We have done many homes that included polished concrete in bedrooms and throughout. In Melbourne people opt to have hydronic heating when doing a new build. The use of rugs Is a great way too mediate for any cold during winter months. Also any windows with direct sun light will mean that the concrete will warm up and hold that warmth. Thats one of my favourite things about concrete floors.