Hi guys,
So i'm at a loss, I cleaned a 2 -3 year old tile floor that was supposedly just mopped no wax products used etc. Was out of groutmaster so used viper II according to instructions and had not great results. tile came clean and bright but grout didn't release everywhere not just oils in kitchen but random places. usually when I hit dirty grout with groutmaster the dirt just separates not this one. after drying and going back I decided to try some viper renew mixed 1/1 according to instructions I didn't use spinner assuming it would etch off naturally gave it 10-15 minutes dwell time then neutralized and removed again not much change in the groutline. after scratching the groutline the original color is just below the dirt so dirt isn't mixed all the way through the grout. any thoughts on fault in my process and any advice to try to get the dirt to release.
thanks
scott
So i'm at a loss, I cleaned a 2 -3 year old tile floor that was supposedly just mopped no wax products used etc. Was out of groutmaster so used viper II according to instructions and had not great results. tile came clean and bright but grout didn't release everywhere not just oils in kitchen but random places. usually when I hit dirty grout with groutmaster the dirt just separates not this one. after drying and going back I decided to try some viper renew mixed 1/1 according to instructions I didn't use spinner assuming it would etch off naturally gave it 10-15 minutes dwell time then neutralized and removed again not much change in the groutline. after scratching the groutline the original color is just below the dirt so dirt isn't mixed all the way through the grout. any thoughts on fault in my process and any advice to try to get the dirt to release.
thanks
scott