I ordered matte finish quartz countertops, but the supplier accidentally sent polished ones instead. Our contractor signed off on the wrong spec sheet without showing it to us. On installation day, they put in polished quartz. My wife was furious! They ended up having the stone company hone the polished countertops down to a matte finish. Now we're worried that there's no protective finish left on them because they seem to stain easily and are tough to clean. For instance, if I lean against the quartz wearing blue jeans, it leaves a mark that's hard to get out. I'm wondering if I should apply 511 stone sealer on these quartz countertops since I've heard you usually don't need to seal quartz. But is it possible that honing removed any protective layer? Would a sealer help with the stains and marks? Thanks for the advice!
1 Answer
Quartz doesn't usually need sealing because it's not a natural stone, so I'm not sure if a product like 511 will even help. Polished quartz is typically just buffed for shine, not coated. If your denim is staining it, that’s a bit strange. Could you share which brand and color it is? Maybe the manufacturer has more insight on this issue!

Thanks for your input! It's Cambria (MacBeth) that was honed to a matte finish. I plan to reach out to them since they haven't been helpful before. They placed the blame entirely on our contractor. The local supplier is willing to assist us with the honing process, so I'll check with them too, even though I'm pretty sure the warranty is now voided.