Armstrong Premixed Sanded Acrylic Grout sets in around 3-8 minutes, and can be installed the same day as the tile. Light foot traffic is acceptable after 24 hours. Armstrong’s grout will not discolor or darken over time and offers superior stain resistance.
325 sq.ft./gallon – 1/8″ joint spacing.
275 sq.ft./gallon – 3/16″ joint spacing.
225 sq.ft./gallon – 1/4″ joint spacing.