Full Product Manual

If stucco is used for siding, a separation is required between the
stucco and Vycor enV. Two options are:
• A layer of conventional building paper/felt between the stucco
lath and Vycor enV
• A type of metal lath or other method that stands the stucco
away from the Vycor enV
If a separation sheet is used, it must be permeable to allow the
wall system to breath. Any separation sheet recommended by
stucco manufacturers is acceptable. Separation sheet should not
be applied on Vycor enV until the product is fully cured.
Cleaning
Tools and equipment are most effectively cleaned using a damp
cloth and removing material as soon as possible to prevent curing
on tools and equipment. For short shutdown periods, material can
remain in the lines and equipment. Material should not be left in
the lines for any period of time if temperatures are expected to
drop below 40°F (4°C). Follow manufacturer recommendations
for long shut down, which may include adding anti-rust to the
water or lling the pump with oil.
Transitions to beams, columns, window and doorframes, etc.
should be made with a strip of Vycor self-adhered ashing. As
soon as the Vycor enV is cured (approximately 24 hrs after appli-
cation at 50% R.H, 68°F), it is ready to accept the Vycor enV
Joint Tape.
Gaps around penetrations should be caulked with a compat-
ible sealant. Consult Technical Letter 1 or contact your Grace
Construction Products representative.
Membrane Application
Vycor enV can be installed through a spray application. Vycor
enV may be applied by roller, however spray application is the
preferred method. If applying Vycor enV by roller, multiple mate-
rial passes may be
necessary to ensure that the required wet thickness is achieved.
Contact Grace for further details of local applicators, application
techniques and spray equipment.
Application Temperature—In spray
applications, Vycor enV may be applied at temperatures as low
as 40°F (4°C). Vycor enV is not recommended for use when cold
and/or damp conditions exist for prolonged periods. Vycor enV
is a water-based material. As with all water-based materials, it is
subject to freezing at temperatures below 32°F (0°C).
Thickness Control
Application thickness is controlled in vertical applications by
marking the area and
spot-checking the thickness with a wet lm thickness gauge.
Swipe marks on the surface of the Vycor enV are acceptable as
long as the minimum thickness is maintained.
Coverage Rates
Vycor enV is typically applied at a minimum thickness of 30
mils wet. The theoretical coverage rate (not including waste) at
a thickness of 30 mils is approximately 55 ft
2
/gal (275 ft
2
/pail) to
reach a 15 mil dry thickness.
Coverage may vary depending on application technique and may
be reduced over rough and uneven substrates. The applicator goal
should be a continuous membrane at a thickness of 30 mils wet,
adjust coverage rate accordingly.
Drying
Vycor enV is dry to touch and can be
overcoated within 4 hours under normal conditions (50% R.H,
68°F). Vycor enV dries through in 24 hours at normal conditions
(50% R.H, 68°F). Drying and skinning times may vary depending
on temperature,
humidity and surface conditions.
Application of Insulation and Finishes
Vycor enV is not suitable for permanent exposure. Insulation
boards may be installed after Vycor enV has fully cured. If the
insulation cannot be applied within 4 months of the Vycor enV
application, some form of temporary protection (such as tarpau-
lins) should be used to protect the product from the effects of
sunlight. Installation of insulation boards can be accomplished by
using compatible mechanical fasteners or, solvent free
insulation adhesive.
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