Product Description
BASF WALLTITE is an HCFC-based
spray applied polyurethane foam system intended
for industrial/commercial air barrier
applications. Available in regular and cold
temperature grades, the BASF WALLTITE system is
designed for application from 35°F to 110°F. The
foam is produced from two liquid components,
BASF WALLTITE U.S. Resin and 8000a Isocyanate,
which are combined on site by ABAA certified
applicators using a 1:1 by volume proportioner.
The foam is colored for easy identification.
Certification
BASF WALLTITE U.S. is listed
under Air Barrier Association of America (ABAA)
and meets current ASTM C-1029
Processing Recommendations
Primary heater temperature
120°F (49°C)
Hose heater temperature
110°F (43°C)
Mixing pressure
850 lb/in2 (5865 kPa) min.
Air Leakage and Vapor Permeance
Air Leakage Results
As per the technical guide for Air Barrier
Systems for exterior walls of low-rise
buildings, Master Format Section: 01795 Prepared
by CCMC, NRC and ABAA guide specification.
Material Result
L/s/m2 @
75 Pa
0.0001
Vapor Permeance
Perm/inch
1.4
As the WVP
value is less than the maximum 60 ng/Pa-s-m2
(i.e., when installed with a 38 mm thickness on
a substrate such as wood sheathing or concrete
block), as permitted in Article 9.25.1.2 of the
Canadian National Building Code 1995, the wall
assembly must conform to Table 9.25.1.2. When
WALLTITE is installed on a substrate as the sole
wall insulation, such as concrete block, it may
also qualify as the designated vapor barrier if
the installed thickness meets sentence 9.25.4.2
(1) or 5.5.1.2 (1).
General Application Instructions
BASF WALLTITE, properly applied,
will produce high quality polyurethane foam.
Regular grade system must not be applied below
70°F (18°C). Cold temperature grade system must
not be applied below 35°F (2°C). Spraying on
lower temperature surfaces may result in poor
adhesion between the foam and the substrate.
BASF WALLTITE is to be installed
only by Air Barrier Association of America (ABAA)
approved applicators.
BASF WALLTITE U.S. has been
formulated to meet the air barrier and
insulation requirements of industrial/commercial
buildings in a single step.
For more information about
applicator certification and training programs
contact the (ABAA) Air Barrier Association of
America. Visit www.basf.com/spray or contact a
BASF Authorized representative.
Typical Properties of WALLTITE™ U.S.
Liquid
Component Properties
WALLTITE U.S.
Resin 8000a
Isocyanate
Viscosity
cps
@ 77°F (25°C)
400 ± 50
200 ± 30
Specific
Gravity
@ 77°F (25°C)
1.17
1.22
Flash
Point
°F (°C)
>392 (>200)
>392 (>200)
Ratio
(by
volume)
1 part
1 part
Machine Parameters
Primary
Heater Setting
°F (°C)
120 (49)
120 (49)
Hose
Heater Setting
°F (°C)
110 (43)
Hydraulic
Pressure
lb/in2 (kPa)
>850 (5865)
Quality
Control Reactivity Profile
The
following data was generated from tests
conducted by BASF Corporation Laboratories under
the following conditions:
Ambient
Temperature:
73°F (23°C)
Substrate:
Cardboard
Substrate
Temperature:
73°F (23°C)
Grade
(WALLTITE U.S.):
Regular
Cold Temperature
Cream time
sec.
< 1
< 1
Gel time
sec.
1.5 ± 0.25
1.1 ± 0.25
Tack Free
time sec.
3.5 ± 0.5
2.3 ± 0.5
Rise time
sec.
4.5 ± 0.5
2.6 ± 0.5
Density
(core) lb/ft3 (kg/m3)
2.05 ± 0.15 (32.8 ± 2.4)
2.05 ± 0.15 (32.8 ± 2.4)
Test
Results
The
following data was generated at an independent
laboratory. The samples were conditioned under
test method ASTM D-618 (88 hr @ 73°F (23°C), 50%
RH).
Density: (core)
(ASTM D-1622)
lb/ft3 (kg/m3)
2.0 (32.8)
Compressive Strength:
(ASTM D-1621)
lb/in2 (kPa)
@ yield, parallel to rise
28 (193)
Tensile Strength:
(ASTM D-1623)
lb/in2 (kPa)
45 (310)
Closed Cell Content:
(ASTM D-2856)
%
> 90
Water Absorption:
(ASTM D-2842)
%
by volume
2.5
Dimensional Stability:
(ASTM D-2126)
aged 28 days
158°F (70°C), 97±3% RH
8
Thermal Resistance*:
(ASTM C-518)
Btu o in/ft2 o hr o °F
(R)
Initial
0.125 (8.0)
After 28
days at 158°F (70°C), 50% RH
0.15 (6.6)
* Design "R"
=
6.0
Water Vapor Permeance:
(ASTM E-96)
Perm/inch
1.4
Flame Spread Classification**:
For a thickness of 2 in. (50 mm)
ASTM E-84
25
Smoke
Determined 345
* The oven aged thermal
resistance is used for comparative purposes and
does not yield a design value for long term
thermal performance. The assigned thermal
resistance is 1.05 RSI per 25 mm or R6 per inch.
** Numerical flame spread ratings
are not intended to reflect hazards presented by
this or any other material under actual fire
conditions.
Health, Safety and Toxicity
Considerations
Handling Recommendations
8000a Icocyanate
·
Use
personal protective equipment (see MSDS)
·
Avoid all
contact with skin and eyes
·
Do not
inhale the vapors
·
Do not
store in a humid environment
·
In case of
minor spills, absorb using sand or absorbing
material (no sawdust)
·
For more
severe spills, contact BASF, or any agency
specialized in chemical damage control
e.g. Chemtrec 800 424-9300, BASF 800
832-HELP(4357)
·
For more
information please consult the MSDS
WALLTITETM
U.S. Resin
Resin contains a low-boiling blowing
agent
·
Use
personal protective equipment (see MSDS)
·
Before
opening, unscrew the bung slowly to release the
gas pressure in the drums
·
Avoid all
contact with skin
·
For more
information please consult the MSDS
Application
Safety
While spraying, always work with adequate
ventilation. Protective gloves and face mask are
strongly recommended. When atmospheric levels
may exceed the occupational exposure limit (PEL
or TLV) approved air-purifying respirators
equipped with an organic vapor sorbent and
particulate filter can be used as long as
appropriate precations and change out schedules
are in place. Consult MSDS. Persons with known
respiratory allergies must avoid exposure to the
Isocyanate component. If inhalation of the
vapors occurs, remove the person from the
working area to breathe fresh air and if
breathing is still difficult call a physician.
Avoid contact with eyes, skin and clothing. In
case of eye contact, immediately flush with
large amount of water for at least 15 minutes
and call a physician immediately. In case of
skin contact, wash area with soap and water.
Wash soiled clothing before reuse.
Do not apply mixed components in
excess of two inches (50 mm) per pass due to
exotherm of the reaction. Allow passes to
thoroughly cool before applying successive
passes.
Thermal Barrier (Combustible
Warning)
Polyurethane products manufactured or products
from these chemicals may present a serious fire
hazard if improperly used or allowed to remain
exposed or unprotected. The character and
magnitude of any such hazard will depend on a
broad range of factors, which are controlled or
influenced by the manufacturer, applicator or
production process. Each person, firm or
corporation engaged in the manufacture,
production, application, installation or use of
any polyurethane materials should carefully
determine whether there is a potential fire
hazard associated with such specified usage, and
utilize all appropriate precautionary and safety
measures as outlined in Local, State and Federal
regulations governing the manufacture of
products or the construction and/or renovation
of commercial or residential structures.
Interior applications must include the use of an
approved thermal barrier.
Drum Description
Isocyanate:
Black 500 lb (227 kg.), steel drum
Resin:
Blue 500 lb (227 kg.), steel drum
Fire Hazard
Fires involving either component may be
extinguished with carbon dioxide, dry chemical,
or an inert gas. Application f large quantities
of chemical spray is recommended for spill
fires. Personnel fighting the fire must be
equipped with self-contained breathing
apparatus.
Storage Recommendations
Resin and Isocyanate must be stored in a dry
location and away from sunlight and other
sources of direct heat.
Resin
Isocyanate
Shelf Life
6 months
6 months
Temperature
50°F - 73°F
(10°C - 23°C)
60°F - 80°F
(16°C - 27°C)
About BASF
BASF Corporation has been assessed and
registered as meeting the requirements of ISO
9001 by ABS International Certification Services
Inc. for blending, repackaging, storage and
delivery of chemicals for polyurethane as well
as for the design of chemical products for
polyurethane.
Note: WALLTITETM is a trademark
of BASF Corporation. |