Technical Specifications

Dow Building Solutions
5. Dispense foam to verify proper chemical mixing. If improper
mixing or poor foam quality, refer to the Troubleshooting
section, Section 7 of this manual.
3.2 Nozzle Replacement
1. The life of a nozzle depends on elapsed paused
spraying time and chemical temperature. Replace a
previously used nozzle if the elapsed paused spraying
time is exceeded using the chart below as a guide.
This chart is for the cone and fan type nozzles. Other
specialty nozzles may have different elapsed paused times.
2. To replace the used nozzle, push down the nozzle
ejector. The used nozzle should eject.
3.2.1 Using the Kit
Replace nozzle when nozzle has not been used for more than
30 seconds. Nozzle is removed by firmly depressing the yellow
ejector located at the top of the INSTA FLO
™
Dispenser. Before
applying foam, make a small test shot into waste container to
verify foam quality.
Insert an unused nozzle with the key slot down. Push in firmly
until the nozzle ejector is seated over the back rim of the
nozzle. The kit is ready to operate.
Section 4
DO NOT breathe vapor or spray. Proper PPE and ventilation are
required. See product SDS and Section 2 of this manual for further
information. Follow all precautions for product.
4.1 Application
READ ALL DIRECTIONS BEFORE USING
1. Chose the nozzle with the pattern and flow rate appropriate
for the job. Attached the nozzle.
2. Practice on scrap material or plastic sheet to get the feel
of spraying and to ensure you are making good foam.
3. Hold the INSTA FLO
™
Dispenser about 6”-24” (15 cm –
60 cm) away from the area you intend to spray. Apply foam
by squeezing trigger. Note yellow safety on the trigger must
be depressed first, unlocking trigger. Move the INSTA FLO
™
Dispenser with a steady back and forth motion when
dispensing foam. Hold the gun a consistent distance from the
work and perpendicular to the work. Move in a steady side to
side stroke. Avoid swinging the gun, it will result in variable
thicknesses of foam. The speed of your movement and the
distance from the work will determine the thickness of
the foam.
4. Always fully engage the trigger of the gun. Partial engage-
ment can result in off ratio foam.
5. It is important to note that two-component foam products
will release heat while the liquid froth cures into the final solid.
They should be applied in layers of 2 inches or less to allow
the foam’s heat to dissipate between sprayings.
6. Let the foam cure (a minute or two) Look for an even tan
color foam. Watch to see that it rises 3 or 4 times the original
thickness. Make sure the foam has cured and is firm.
Foam will expand and will be tack free within 60 seconds
(3 –4 minutes for slow rise formulas), and is fully cured in five
minutes. It is recommended that foam be applied in layers of
2” or less in any single application layer. Note: If the foam is to
be injected into a hidden cavity, a test shot is recommended
prior to each injection.
8
Chemical Temp
Elapsed Paused
Spraying Time
70°F (21°C) 35 Seconds
75°F (24°C) 30 Seconds
80°F (27°C) 25 Seconds
85°F (29°C) 20 Seconds