Hope all is well. Looking for some clarification please:
As I understand it, polyblend grout need not be sealed. I'm using Mapei Kerabond sanded in a shower and master bath. Today the Super on the job inquired about sealing the grout. I advised him it wasn't required. Tonight for grins, checked out Mapei's take...here:
...and they say it's (paraphrase) "while it's not required, it's certainly helpful...."
Curious to know if I advised him correctly, and the grout, without sealing, will perform to standards, reasonable usage witheld.
Thanks YO !!!