Another A+ for DRYLOK
Recently, Coatings Research Group, Inc (CRGI) evaluated
DRYLOK Powder Masonry Waterproofer for alkalinity/efflorescence resistance via
CRGI Test Method 74.
Testing Method 74
The waterproofer was prepared according to the label
directions by mixing the equivalent of 2 pints of cold water to 10 pounds of
DRYLOK powder. After mixing until smooth, the equivalent of 2 pints of
cold water was added for “normal application” or 1.5 pints for “Heavy
application”. To distinguish between the two application conditions, a few
drops of magenta colorant were added to the mixture.
The mixtures were applied to a high pH substrate. A
vinyl acrylic negative control was included to show absolute failure for a
comparison. The block was allowed to cure at normal room conditions for
three days. After the three day cure, panels were placed into a Q-Fog
under the water fog cycle (ASTM D 1735-08) simply put - 1 hour of condensation,
1 hour dry-off at 95°F. After one week of exposure, the panels were rated
for efflorescence resistance
|
Negative
Control-Color Accents Vinyl Acrylic Paint (Sherwin Williams)
|
4
|
|
DRYLOK Powder
Masonry Waterproofer –
Normal
Application
|
10
|
|
DRYLOK Powder
Masonry Waterproofer –
Heavy
Application
|
10
|
CRGI Test Method 74 – Rating 10= No defect
observed
1 = Severe defect observed
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