Hi!

In my experience most epoxies will stick extremely well to almost any clean dry concrete surface, and even dirty dusty ones as well (my workroom floor shows almost all the colours of epoxy I have dripped onto it while making moulds and parts If allowed to cure properly and the concrete floor is really dry it will be extremely wear resistant, especially when you add some kind of filler, like glass fibre filler or metal powders.

I have "bumps" of tooling epoxy on my workroom floor that has lasted for more than 5 years The floor was not clean when it was "applied" but it was (and is) very dry

I would use the  Glasscast  10 or 50 type epoxies for something like that, it will most likely polish quite well along with the concrete


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I have a new internal concrete floor that has hardened fully. It is part of a barn conversion that we have done ourselfves.  I have taken it down with very course diamond cutters using a concrete polishing machine, and am now looking to proceed with several finer grades of diamond to achieve a mid polish look, not too finished as we like the texture of an odd blemish and defect.  Crux of the query -  (Advice) with the larger defects perhaps between 2 to 5mm deep, and some a little deeper in places, with varying lengths and widths.  Rather than trying to hide them, we want to highlight them and using a resin product seems to be a first choice.  We could use clear resin to cast in interesting features, keys, coins etc and also use simple solid colours in other areas.  My question is around the products to select, how well they will bond to the concrete substrate and the factors to consider in grinding\polishing such features along with or subsequent to polishing the concrete.  I am sure this won't be an uncommon use of resins but Id like to learn\understand a little more before purchasing and casting.  Perhaps there are references and links\guides you could recommend as well as a product range?