Installation Guide

18
directly, or in previously prepared
water solution form to obtain the
most uniform effect.
2. Never use gauging or moulding
plasters in place of commercial
accelerator since they can adversely
affect working qualities.
Kal-Kote Application
Over Kal-Kore
Basecoat Over Kal-Kore
1.
Tightly scratch material into
previously treated joints and corner-
beads, then immediately scratch-in
tightly over the wall and/or ceiling
area.
2. Double back over the area just
troweled with material from the
same batch bringing total thickness
up to 1/16" minimum.
3. When plaster has “taken up,”
eliminate excessive trowel marks
and fill all surface voids and imper-
fections to obtain a reasonably
uniform surface. Do not over-trowel
to a slick surface. Roughen the
unset basecoat plaster surface with
a serrated darby or lightly wire rake
to provide mechanical keying for
the finish plaster when necessary.
2. Add plaster and allow to soak
for about 1 minute or add plaster
as mixer is turning, then mix until
uniformly wetted.
3. Add remaining water and mix
sufficiently to obtain desired lump-
free material fluidity.
Note:
A. Mixing periods greater than
5 minutes will not be required if
proper equipment and procedure
are used.
B. Mix no more than two bags per
batch to avoid mixing too far in
advance of application.
C. Caution is advised against mixing
more than two successive batches
without thorough equipment clean-
up to avoid undue set acceleration.
D. Avoid the practice of mixing
partial bags since this leads to
difficulty in maintaining uniform
material qualities.
Job Setting Adjustment
1.
Basecoat and Finish Plasters:
Small amounts of commercial
retarder or commercial gypsum
type accelerator may be cautiously
used to adjust setting time when
extreme conditions demand. When
commercial retarder or accelerator
is used, add to mixing water
Kal-Mesh Treatment Method
Do not use self-adhering mesh.
1. Center and secure Kal-Mesh
over all joints and interior angles
with 1/4" or 5/16" staples.
2. Position staples a maximum of
24" apart as follows:
A. Joints: at alternate edges for
the run from end to end and
directly opposite one another at
either end.
B. Angles: along ceiling edge
only for wall-to-ceiling angles.
Along one edge for wall-to-wall
angles.
3. After the first staples are placed
at the end of a joint or angle, pull
unstapled Kal-Mesh as stapling
proceeds to assure that it will lie
flat against the Kal-Kore.
4. Pre-treat all joints and Kal-Beads
with Kal-Kote, Uni-Kal or X-KALibur
Plaster. Tightly trowel over joint
line in both directions to prevent
voids, feathering to a maximum
width of about 6".
5. Allow the treated joints to set
prior to general plaster application.
Plastering
Note: Application shall conform to
ASTM C 843.
The same general job conditions
used in good conventional plaster-
ing practice should be maintained.
However, because Veneer Plaster
coats are thin, particular action
must be taken to guard against
dryouts (primarily avoiding direct
exposure to concentrated sources
of heat and drafts.)
Special attention should also be
given to temperature conditions
under which the system is installed.
Both “in-place” and application
performance of individual Veneer
System components will be greatly
enhanced if all construction areas
and materials are at a suitable
temperature equilibrium before,
during and after installations.
During cold weather, maintain a
temperature 55˚F (13˚C) to 70˚F
(21˚C) before, during and after
installation of all system components
until building is occupied.
Mixing
Equipment:
Mixing should be
done with a high-speed mechanical
mixer. A paddle-type agitator fitted
to a 500-600 RPM heavy duty,
1/2" electric drill and a clean,
smooth-sided drum of convenient
size are recommended for rapid,
efficient mixing of all Kal-Kote
Plaster types.
Water Ratios: Use only clean,
fresh water suitable for human
consumption. Basecoat: 6-8 qts.
per 50 lb. bag. Smooth Finish:
18-20 qts. per 50 lb. bag. Texture
Finish: 11-12 qts. per 50 lb. bag.
Uni-Kal and X-KALibur: 13-15 qts.
per 50 lb. bag.
Procedure
1.
Put all but 1 to 2 qts. of the
proper water volume in a suitable
mixing drum.
Note: Starting with an insufficient
amount of mixing water will seriously
degrade mixing and application
performance.