Dow THERMAX™ Wall System - Manual (Page 2)

of the insulation board and then
sealing with flashing.
8. Veneer ties can now be secured
to the steel stud walls by applying
a section of WEATHERMATE
™
Flashing to the surface of
THERMAX
™ (ci) Exterior Insulation
prior to penetrating it.
9. If necessary due to stud place-
ment, the floor line fire-stop
should already be installed.
Finally, STYROFOAM
™ Brand
Spray Polyurethane Foam (CM
Series) can be applied to the
interior of the stud cavity by a
qualified SPF applicator.
AIR BARRIER COMPONENT
INSTALLATION
The performance of STYROFOAM ™
Brand Spray Polyurethane Foam
(CM Series) ICC ESR-2670 can be
affected by all the component parts
of a structure, atmospheric
conditions inside and outside the
structure, equipment capabilities,
and maintenance quality and
frequency. Only personnel trained in
spray polyurethane foam application
should install STYROFOAM
™ Brand
SPF (CM Series) per Dow Building
Solution’s qualification program.
SAFETY AND CONDITIONS OF USE
• Read the instructions and Material
Safety Data Sheets carefully before
use. MSDSs for STYROFOAM
™
Brand SPF products are available at
www.dowbuildingsolutions.com/na.
Visit www.spraypolyurethane.com
for further details and supporting
information covering a wide range
of topics including an overview of
SPF health and safety guidelines,
suggested personal protective
equipment (PPE), typical first-aid
treatment, and regulations and
information about “green” marketing.
• STYROFOAM ™ Brand Spray
Polyurethane Foam contains
isocyanate, hydrofluorocarbon
blowing agent and polyol. Do not
breathe vapor or spray. Use only
with a NIOSH-approved supplied
air respirator (SAR) in accordance
with your company’s respiratory
protection program. Supplied air
respirator or an approved air-
purifying respirator equipped with
an organic vapor sorbent and a
particle filter (P100) is required to
maintain exposure levels below
ACGIH, OSHA, WEEL or other
applicable limits. For situations
where the atmospheric levels may
exceed the level for which an air-
purifying respirator is effective, use
a positive-pressure, air-supplying
respirator (air line or self-contained
breathing apparatus).
• Isocyanate is irritating to the eyes,
skin and respiratory system, and
may cause sensitization by inhalation
or skin contact. Sensitization, or the
development of asthma, can lead
to permanent respiratory problems.
• STYROFOAM ™ Brand SPF will
adhere to most surfaces and skin.
Do not get foam on skin. When
spraying polyurethane foam, wear
MDI-resistant (e.g., nitrile) or fabric
gloves coated in nitrile, neoprene,
butyl or PVC. Spray applicators
should wear chemically resistant
coveralls or full body suits with
hoods and MDI-resistant fitted
boots or booties. Professional
judgment is necessary to determine
the appropriate PPE necessary for
secondary activities such as
cleaning and trimming of the cured
foam. Cured foam must be
mechanically removed or allowed
to wear off in time.
• The contents are under pressure.
• STYROFOAM
™ Brand SPF should
be installed by a trained SPF
applicator.
EQUIPMENT GUIDELINES
• The drum contents are under
pressure. Keep the drums out of
sunlight and never use heating
devices to warm drums. If the
drums should cool below 60°F,
allow drums to warm naturally to
60°F-90°F prior to application.
• Position drums to be used in a
ventilated area out of rain or
sunlight. The use of a sealable drum
transfer pump is recommended. A
transfer pump long enough for totes
will rest on the bottom of the drum.
If the extra-long drum transfer pump
cavitates as the drum empties, the
pump can bounce against the
bottom of the drum, leading to
damage and subsequent leakage
of the contents.
• Open the bung with the proper tool
to minimize damage to the bung
cap. Open slowly until gas pressure
(warm weather) or vacuum (cool
weather) is released and then
remove the bung cap completely.
• Never leave drums open for longer
than 10 minutes. To prevent
cavitation of the drum transfer
pump, install a desiccated air dryer
on the vent cap to keep the drums
at atmospheric pressure. If the
drum is not kept well sealed,
moisture in the air will lead to solids
formation in the isocyanate drums
(A component), which can plug
filters and pump check valves.
Open polyol drums (B side) will
allow the blowing agent to
evaporate, which dramatically
I N S T A L L A T I O N I N F O R M A T I O N . C O M M E R C I A L
PRODUCT STORAGE
RECOMMENDATIONS
THERMAX ™ (ci) Exterior
Insulation
• Do not leave THERMAX ™ (ci)
Exterior Insulation exposed to
direct sunlight for more than
180 days.
• Store above standing water.
• If possible, store insulation
boards indoors. If stored
outdoors, keep insulation
boards tarped or covered to
protect from weather.
• If insulation boards get wet,
allow them to air dry before
covering with exterior
coverings.
• Insulation boards are
lightweight and can be blown
around by wind. Weigh down
loose boards until they are
securely attached to the
structure.
• For both indoor and outdoor
storage, adhere to all local
building and fire codes.
(References include NFPA 230
“Standard for the Fire
Protection of Storage,”
NFPA 13 “Standard for the
Installation of Sprinkler
Systems” and applicable ICC
or local building codes.)
STYROFOAM ™ Brand SPF
STYROFOAM ™ Brand SPF
(CM Series) has a shelf life of
six months when stored dry
between 60°F and 90°F. Avoid
direct sunlight during shipping
and storage on the job site. The
drums should be protected from
the weather to prevent moisture
from entering the drums. Store
the drums in compliance with
local fire and safety requirements.
Caution should be exercised
when opening containers as
pressure may be present when
material has been exposed to
elevated temperatures. Empty
drums are nonreturnable and
should be disposed of using
current industrial practices in
accordance with federal, state
or local regulations.
®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
reduces foam yield.
• Empty isocyanate drums should be
left uncapped prior to cleaning and
disposal per local regulations. Ambient
air contains moisture, which can
combine with the residual isocyanate
generating pressure in the drum.
• Keep the drums out of direct
sunlight and out of the weather