Concrete and stone surfaces should be dry and free from previous coatings, contaminants and loose material and at least four weeks old. Very smooth concrete or concrete with soft laitance should be etched with Surfa-Etch 108. Grease or oil should be removed with ND14 and the area thoroughly washed off and allowed to become completely dry.
- Temperature of material, air and substrate between 10 and 35°C and relative humidity below 85%.
- The substrate temperature must be at least 3°C above dew point.