0018_00111-033 Application In
STORAGE OF 11-033 CHEMICALS:
Avoid storage in freezing temperatures. Storin
chemicals above 90°F should be avoided as
much as possible. Do not store in direct
sunlight. The shelf life of unopened A2-000 is
months and the B11-033 is 6 months.
SPRAYING 11-033 CHEMICALS: Chemicals
should be between 65°F and 85°F for proper
processing through the spray equipment.
Chemicals shipped during winter or summer
months may need extra time to stabilize back into
the 65OF to 85°F range. Excessively warm
chemicals should be cooled prior to opening the
drums for safety and processing reasons. Cold
chemicals can cause poor mixing, pump
cavitation or other processing problems. Keep
drums tightly closed when not in use and under
dry air or nitrogen pressure of 2-3 psi after they
have been opened.
SAFE HANDLING OF LIQUID COMPONENTS:
Use caution in removing bungs from the
container. Loosen the small bung first to allow
any built-up vapor pressure to stabilize before
completely removing. B component will froth at
elevated temperatures. Avoid prolonged
breathing of vapors. In case of chemical contact
with eyes, flush with water for at least 15 minutes
and get medical attention. For further information
go to www.spraypolyurethane.orq and click on
the Resources tab in the Professional Contractors
section.
APPLICATION GUIDELINES:
11-033 is suitable for application to most
construction materials including wood, masonry,
concrete, and metal. 11-033 should not be
applied to surfaces that will be in contact with soil
and intermittent contact with water.
NCFI provides a Fast version for applications in
temperatures below 60°F. To ensure proper
adhesion, all substrate surfaces should be dry,
clean of dust or flaking surface rust, ice or frost.
All metal surfaces must be free of oil, grease, etc.
Uncoated metals may require a primer coat.
No flammable chemicals, such as wasp and
hornet sprays, should be sprayed in the area of
the foam application 24 hours before the
application. No such chemical can be sprayed
after the foam application until the foam has
cooled to room temperature.
APPLICATION AROUND PLASTIC PIPES:
Based on a series of extensive studies, the
11-033 system can be applied in contact with
PVC, CPVC, ABS, PP-R and PEX plastic pipes.
The pipes must not be pressurized during the
foam application. The foam pass applied in
contact with the pipe should not exceed 2"
thickness in order to prevent excessive
exothermic heat at the pipe to foam interface.
Allow 2 minutes cooling between each additional
foam pass. The total foam thickness is limited to
that thickness permitted in that area of the
building assembly.
APPLICATION AROUND ELECTRICAL WIRES:
Based on NCFI testing, the 11-033 system can
be applied in contact with electrical wires. Spray
foam applicators must spray the foam in such a
manner that the expanding foam does not stretch
and distort the wires. Light gauge wires which will
be encapsulated in the foam layer should have
the foam installed behind the wires and allowed
to cool prior to applying a top layer to cover the
wire. Use a shallow lift of 3/4" of foam to cover
the wire. Wait the required 2 minutes between
passes when adding more foam thickness to
achieve the desired R-value.
APPLICATION PASS THICKNESS:
Spraying foam will generate heat. Foam which is
applied too thick in single passes can build
temperatures which will degrade cell structure
and not produce foam with optimum properties.
In the most extreme case, 11-033 could reach
dangerously high temperatures inside the finished
foam which could lead to splitting, charring, or
even spontaneous combustion. The maximum
pass thickness for 11-033 is 4 inches. Wait 10
minutes or until the foam surface has cooled to
ambient temperature before adding additional
foam passes. Multiple layers can be applied to
achieve the desired R-value.
The information on our data sheets is to assist customers in determining whether our products are suitable for their applications. The customers
must satisfy themselves as to the suitability for specific cases. NCFI warrants only that the material shall meet its specifications. This warranty
is in lieu of all other written or unwritten, expressed or implied warranties, and NCFl expressly disclaims any warranty of merchantability,
fitness for a particular purpose, or freedom from patent intiingement. Accordingly, buyer assumes all risks whatsoever as to the use of the
material. Buyer's exclusive remedy as to any breach of warranty, negligence or other claim shall be limited to the purchase price of the
material. Failure to adhere to any recommended procedures shall relieve NCFT of all liability with respect to the material or the use thereof.
Barnhardt Mfg, dba NCFI Polyurethanes • Mount Airy, NC 27030 800.346.8229 wwNCFI.com "� w r
P O L Y U R E T H A N E S
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