Technical Specifications

Dow Building Solutions
fully cured foam.
9.1.2 Application
Avoid spraying over rising foam.
9.1.3 Temperature
To ensure proper chemical mix, reaction, cure, and optimum
yields, chemicals should not be dispensed if the chemical
temperature is below 65°F (18°C). Insufficient operating temper-
atures can cause improper mix, extend cure time, and adversely
affect final physical properties and yields.
NOTE: When using polyurethane foam, estimate 10% more foam than is
required. This yield buffer is recommended so that you will not run out of
chemical on a job site.
9.2 Where Applied
Residential:
FROTHPAK
™
Foam Sealant is used primarily as an air sealant at
openings around vents, pipes, ducts, cables and wires, or flash
and batt projects, or under cellulose or other blown-in insulation
to air seal.
With its Class-A rating, FROTHPAK
™
Foam Insulation is com-
monly used to insulate along the sill plate, rim joists and wall
cavities.
Commercial:
There are a variety of commercial applications for FROTHPAK
™
Foam Insulation (Class A). It is acceptable to use on applications
such as roof penetrations, sealing holes and pitch pockets, wall/
floor juncture, duct sealing (IRC applications), and blocking inside
conduit at a non-hourly rate. Contact Dow for further information.
Section 10
Transportation
Follow all local, regional, and federal transportation requirements.
It is safe to transport FROTHPAK
™
products in either the cab or the
bed/trunk of a vehicle providing they are upright and secured from
moving or falling.
Caution should be used when the vehicle is left unattended
• In winter, the kit may get too cold. The kit needs to be stored above
45 degrees Fahrenheit or 7 degrees Celsius, and is best to be
sprayed at 75 degrees Fahrenheit or 24 degrees Celsius.
• In summer, cabs and trunks can get too hot.
Section 11
Tank Heating
11.1 Usage
When FROTHPAK
™
liquid chemical inside the tank liquid chemical is
below 65ºF(18ºC) an external heat source may be required. Heating
the tank is NOT required when the liquid chemical is above 65ºF (18ºC)
Heating bands are available for 620 and 650 cylinders, through:
McMaster-Carr
www.mcmaster.com
6306003600
The heater band McMaster model numbers are as follows:
620 tank 3549K41
650 tank 3549K41
During the initial start-up, the controls for the heater bands can be
set at medium for 3060 minutes. However, for continuous operation,
“LO” would be the desired setting, unless extremely low temperatures
are experienced.
11.2 Installation Procedure - Tank Heater Band
1. Wrap and clamp heater band around tank prior to switching on.
2. Pull on spring, at the same time hold end of heater against
the tank.
3. Place a loop of the spring over the hook.
4. The heater should not be clamped in dented areas of the tank.
5. The heater must be in full contact with the tank and below the
13