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DESCRIPTION Karnak
#19AF Flashing Cement is a scientifically compounded composition
of selected asphalts, mineral fibers, and refined solvents that
are manufactured to a heavy consistency for application by trowel
to provide a durable, elastic coating of excellent adhesion and
high resistance to water and weathering. This product dries to a
tough, flexible, waterproof and corrosion proof coating which gives
excellent performance over wide ranges of temperature and weather
conditions. Karnak #19AF Flashing Cement is available in 2 consistencies:
Summer and Winter.
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PHYSICAL PROPERTIES
- Consistency: A smooth, heavy trowel consistency which will readily
spread on and adhere to vertical and horizontal surfaces without
sagging.
- Character of Dried Film: Uniform, excellent adhesion to masonry,
steel, cured concrete, shingles, asphalt roofing and a variety
of other surfaces.
- The dried film retains its flexibility and ductility so that
the coating will resist extreme variations in temperature and
weather.
- Has excellent resistance to flow at high temperatures when used
on a vertical surface.
USESKarnak
#19AF Flashing Cement is a general purpose cement for repairing
leaks in shingles, concrete, metal or asphalt roofs, flashings on
walls, chimneys, flues, downspouts and cornices. It is excellent
for sealing cracks in concrete and brick, as a joint filler for
precast roof slabs and for general purpose use in maintenance of
exposed buildings and structures.
SPECIFICATIONS
- Federal Specification SS-C-153 Type I (AF)
- ASTM D-4586 Type I
SURFACE PREPARATIONAll
surfaces should be clean, dry and free from oil or grease, dust,
dirt, loose paint or other foreign matter.
APPLICATIONSpread
Karnak #19AF Flashing Cement to an average thickness of 1/8"
(approximately 8 gallons per square) and press tightly into joints,
seams or cracks. To repair large cracks, breaks and blisters:
- Spread Karnak #19AF Flashing Cement over the damaged area.
- Embed Karnak Cotton, Glass or PolyMat Membrane reinforcement.
- Apply another coat of Karnak #19AF Flashing Cement over the
entire patch.
 CARE
OF TOOLSTools
and other equipment should be thoroughly cleaned with mineral spirits,
taking necessary precautions when handling combustible materials.
CAUTIONDo
not use near open flame. Avoid breathing solvent fumes and prolonged
contact with skin. Do not take internally. If swallowed, do not
induce vomiting. Call a physician immediately. Keep out of reach
of children. Keep container covered when not in use. Do not thin.
Dispose of in an environmentally safe manner.
PACKAGINGAvailable
in 5 gallon pails, 3 gallon buckets and 1 gallon cans.
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