What are these areas

[Mark Gallison 14]

I have a customer that has these spots on their concrete porch and have never run into this before. You can see from the dry photo compared to the wet one that it appears that the water doesn't penetrate those areas,. To me it looks possibly like leftover sealer from one point? Thinking if thats the case maybe Xylene or some sort of paint remover etc would take it off? Any thoughts or suggestions.

[Tracy Handl 108]

looks to me like a crappy finish job where the cream was very thin and not spread evenly. Just my opinion from what is shown in the picture.

[Celeste 341]

Does water absorb on the flat places?

[Doug Black 18]

Problem occurred at installation imo and is permanent.

[Mark Gallison 14]

Does water absorb on the flat places?

No as seen in the photos, the one shows it after rinsing with hose and the areas stay light in color and dry for the most part so I am assuming it may be sealer? I haven't physically been to the site, the customer sent me these pics.

[doc hubbard 14]

From past experinces, it was probably when the forms were took off, and what you see is patching. It want change because the mix is so different. Just my opinion.

[Doug Black 18]

You could try a tinted sealant

[mick m 19]

Depending on what the form work was made from, you might find its the wafer thin plastic coating used on the form work to give it that smooth finish that peeled off & has stayed on the concrete surface.