How do I test to see if spots or stains will prevent UCoat from bonding?
Clean and rinse the area free of dust, dirt and debris with fresh water. While rinsing the area, perform the “water test”. Gently rinse the entire area with water and look for evidence of water beading, filming, or otherwise not absorbing into the cement. You should see the cement darken evenly as the water absorbs into it. If any areas (isolated or widespread) appear to be repelling or otherwise impeding the absorption of water further cleaning (see next step) is necessary prior to application.
