Grout Troubleshooting - Mapei
GuideGrout Troubleshooting TABLE OF CONTENTSCement Grout Symptom1-2 Grout discoloration3 Efflorescence4 Tile discoloration5 Grout cracking6 Grout with pinholes6 Powdery Grout in the jointsReady-to-Use (RTU) Grout Symptom7-8 Grout discoloration9 Efflorescence9 Tile discoloration10 Grout not curing11 Grout with pinholes11 Grout crackingEpoxy Grouts Symptom12-13 Grout discoloration13 Efflorescence14 Tile discoloration15 Grout with pinholes16 Grout cracking18-19 UltraCare Quick-reference guideOther20 Mapei Technical Institute1SourcesSolutionsThe mixing water and/or the wash water used to clean had a high content of iron or other potable water, or use Mapei s UltraCareTM Grout Maximizer Grout conditions such as direct sun exposure, hot ambient or tile temperatures, or too much area being grouted at a time before initiating the cleanup process.
1 Sources Solutions The mixing water and/or the wash water used to clean had a high content of iron or other minerals. Use potable water, or use MAPEI’s UltraCareTM Grout Maximizer grout admixture.
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