Sealing
It is not necessary to seal an American Clay Earth Plaster except on the
following surfaces:
• Walls on which you want a low or high-sheen
• Walls that may be exposed to high humidity or splashing water (around
sinks and bathtubs) or splattering oils (behind cooktops or stoves)
or in high-humidity climates.
Note: do not apply American Clay Gloss Sealer over bare plaster, as it will
significantly darken the color of the surface. Always apply a first coat of
Penetrating Sealer before applying Gloss Sealer. or use on a small test area
if a color change is desired.
Even American Clay Penetrating Sealer may cause a slight color change on the
plaster surface—always test and let it dry in an inconspicuous area prior to
sealing any surface.
APPLYING AMERICAN CLAY PENETRATING SEALER AND
AMERICAN CLAY GLOSS SEALER
• Walls must be completely dry prior to application.
• Never apply the first coat with a sponge, brush, or roller—lap-marks will
show. We recommend an airless sprayer with undiluted sealer but if you use
a ‘pump-style" garden sprayer, dilute the sealer with water at a ratio of 1:1.
• Protect adjacent surfaces that you do not want sealed.
• A minimum of 2 coats of American Clay Penetrating Sealer is recommended
for increased hardness and water resistance. A second coat will produce a
slight sheen. To minimize sheen, American Clay Gloss Sealer requires a base
coat of American Clay Penetrating Sealer.
• Prior to sealing entire project test in an inconspicuous area to ensure the desired effect.
1. Remove loose material and dust with a vacuum or soft
brush. Wear a dust mask if using a brush.
2. Stir well.
3. To minimize drips, spray with a sweeping side-to side
motion, overlapping the spray pattern slightly and working
from the bottom of the wall to the top.
 4. Allow sealer to soak in for several minutes,
then lightly blot drips with a sponge.
5. Let first coat dry for 2 hours. Apply second coat when dry.
6. Let the final coat of sealer dry for 72 hours.
7. Clean tools immediately with soap and warm water. |
