I ve been playing with grey cement in my GFRC mix and I wondered if you guys have been having issues with colours on countertops you have made?
I tend to use CEM 1 grey cement to all my mixes and when demolding everything looks fine. It s only after sealing that colour pops out; slabs may look yellowish/greenish.
Do you use white cement+ pigment in your GFRC mix in order to m…
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