SPRAY FOAM SYSTEMS: NITROSYS: Do-It Yourself
Start Up Procedures
Before You Start
Pre-Heating Your Tanks
4
Transporting Your Tanks
4
Pressurizing the System
Connecting your Nitrogen Regulators
4
Attaching your Nitrogen Hoses
5
Attaching your Chemical Hoses
Polyfoam Insul-Seal
Dow Chemical Company/Polyfoam Products Insul-Seal
5
6
Fomo Products Handi-Foam
6
Spritzer Agricultural Foam
6
Pressurizing
7
Calibrating
Weighing and Dividing
8
Testing for Good Foam
9
Spraying Foam and Using the Purge System
Getting Started
Preparing to Spray
10
Spraying Foam
10
Techniques for Spraying Foam
10
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Shut Down Procedures
Daily Shutdown
Shutting Down the System
11
Temperature Control
Heating or Cooling the Rig
12
Temperature Effects
12
*Diagram A
Maintenance
Gun Maintenance
Preparing the Gun for Spraying
13
Cleaning the Gun Interior
13
Assembling the Gun
13
Miscellaneous Maintenances
Upkeep of the System
14
Safety
Safety Supplies
Suiting Up to Spray
14
Isocyanate Safety
14
Troubleshooting
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15
Page 3
Dear Valued Customer,
Thank you for purchasing the Do it Yourself Rental Package. This manual will
guide you step-by-step through your project and tell you everything you need to
know from starting up your system, to spraying foam and cleaning up. If there are
any additional needs or you need live technical service, please feel free to call our
Customer Service line at 1-877-737-4362.
Start Up Procedures
I.
II.
Before You Start:
A. Pre-Heating Your Tanks
1. In order for your system to operate most efficiently, the chemical
must be preheated to as close to 90 degrees as possible.
2. In order to achieve this degree of temperature, store your tanks in
a warm environment such as a heated garage or a hot-box.
3. If you do not have a garage, a hot-box is the most efficient way to
heat the tanks.
B. Transporting Your Tanks
1. The tanks come equipped with a steel footer for transporting. It is
best to use a forklift or pallet jack to move the tanks.
2. Do Not turn the tanks over and roll them!
Pressurizing the System
A. Connecting your Nitrogen Regulators
*Two bottles of Nitrogen will be needed to pressurize your system.
You can find bottles at your local welding store.
1. Strap in your Nitrogen bottles to a safe, sturdy structure. If there
is no structure, attach the bottles to your Foam Tanks.
2. Remove your two high performance regulators from the package.
Upon opening and before installing the regulators on the tanks,
ensure that both dials are backed all the way out
(counterclockwise).
3. Remove safety caps from the dry nitrogen bottles and store them
in your package.
4. Install your regulators on each bottle. Make sure that the regulator
is tight. Do not over tighten!
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B. Attaching your Nitrogen Hoses
1. Locate your nitrogen hoses above your designated nitrogen bottle
area. Red hoses are for Isocynate and Blue hoses are for Polyol.
2. Using combo wrenches, attach the Red hose to the bottom of the
regulator. Attach the Blue hose to the other regulator. Notice that
the fittings are brass JIC fittings. Make sure you do not over
tighten. Finger tighten the fitting, then lightly snug it with a
wrench. If over tightened, brass JIC fittings could crack. Please
use caution.
3. Make your way to the designated area for tank storage. Find your
red and blue rubber Nitrogen hoses. Attach the red nitrogen hose
to the top of the Isocynate tank. Make sure to attach the hose to
the correct fitting. Attach the blue nitrogen hose to the top of the
Polyol tank. Again, make sure you are attaching to the correct
fitting. Do not over tighten! (For Spritzer and Handi-Foam
tanks, please refer to next section on converting your tanks)
C. Attaching your Chemical Hoses
1. 3M SFI-175
a. Find the filters supplied in the package
b. Remove the filters and examine the filters. Notice the flow
direction arrow engraved on the filter.
c. Remove the plug, along with the ½” MPT connection on the
tank. Install the filter in the ½” FPT connection on the tank.
Before removing the plug, ensure that the shut off valve is
turned OFF. The valve is off when it is perpendicular to the flow
direction.
d. Tighten the filter provided on the top of tank to the discharge
valve. Ensure that the arrow found on the filter is pointing away
from the tank.
e. Locate your steel braided hose and attach the female swivel to
the filter on the tank. Make sure to tighten well.
2. Dow Chemical Company Tanks
a. Find the filters supplied on the top of the tanks inside the cloth
bags.
b. Remove the filters from the bags and examine the filters.
Notice the flow direction arrow engraved on the filter.
c. Remove the plug from the chemical discharge valve on the top
of the tank. Before removing the plug, ensure that the shut off
valve is turned OFF. The valve is off when it is perpendicular to
the flow direction.
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d. Tighten the filter provided on the top of tank to the discharge
valve. Ensure that the arrow found on the filter is pointing away
from the tank.
e. Locate your steel braided hose and attach the female swivel to
the filter on the tank. Make sure to tighten well.
3. Fomo Products Handi-Foam Tanks
a. Locate the provided Fomo-Conversion kit.
b. Ensure that all valves on both tanks are turned off.
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c. Attach the conversion kits into the corresponding tanks. Male
and Female fittings will prevent from crossing over the tanks.
d. For Nitrogen conversion, locate the provided Fomo Nitrogen
hoses. Locate the provided #4 JIC adaptor. Connect the Fomo
Nitrogen hose to the Nitrogen hose within the trailer with the
JIC adaptor.
e. The filter is built within the conversion kit. Ensure and double
check that the arrow on the filter is pointing away from the
tank.
f. Locate your steel braided hose and attach the female swivel to
the filter on the tank. Make sure to tighten well.
4. Spritzer Agricultural Foam
*a minimal 12” adjustable wrench is needed to adjust some
Spritzer fittings
a. Locate the provided Spritzer-Conversion kit.
b. Ensure that all valves on both tanks are turned off.
c. Remove the cap from the top of the Spritzer discharge valve.
Tighten the Spritzer-Conversion kit onto the top of the tank.
Make sure all valves on the conversion kit are turned off.
d. For Nitrogen conversion, use the supplied quick-connect and
connect to the top of the Nitrogen tank. Tighten the nitrogen
hose to the top of the quick connect conversion. Do not over
tighten!
e. Attach the filter to the top of the conversion kit. Make sure that
the flow direction arrow is pointing away from the tank.
f. Locate your steel braided hose and attach the female swivel to
the filter on the tank. Make sure to tighten well.
D. Pressurizing
*Before continuing, please make sure all valves are
turned OFF within the system.
1. Make sure that your nitrogen regulator dials are backed all the way
out and are loose.
2. Slowly open the valve on the top of your nitrogen tanks. Your
nitrogen regulator should read around 2000-2500 PSI on the high
pressure side if the bottle is full.
3. Different manufacturers have different pressures that the
recommend to get to their operating ratio.
 3M A side 140 PSI and 3M B side 190 PSI
 DOW A side 160 PSI and B side 175 PSI
 FOMO A side 160 PSI and B side 170 PSI
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4. For the isocyante regulator (A SIDE, ISO, RED), set the PSI output
by slowly turning the dial on the regulator in the clockwise direction
until the regulator reads a recommended PSI on the inner red dial.
Do not exceed 200 PSI!
5. For the polyol regulator (B SIDE, POLY, BLUE), set the PSI output
by slowly turning the dial on the regulator in the clockwise direction
until the regulator reads 170 PSI on the inner red dial. Do not
exceed 200 PSI!
6. Locate the nitrogen shutoff valves on the top of you tanks. Open
the nitrogen shutoff valves on top of the tanks. This will allow your
nitrogen to pressurize the tanks. Do not open chemical discharge
shutoff valves!
7. After the tanks are completely pressurized (little or no noise), open
the main discharge valve on the top of the tank. Then, open the
shutoff valve on the chemical hose. This will allow chemical to be
pushed into the hose.
8. Place a calibration nozzle on the tip of your gun. Turn the valve at
the gun on the polyol side on and switch the valve on the iso/purge
block toward the iso hose.
9. Pull the trigger to purge the air out of the hose. Air will be followed
by chemical. Purge all of the air and chemical until it starts to
begin to flow in a steady stream. When chemical begins to flow in
a steady stream (15-45 seconds of discharge), the hose is now
completely pressurized.
III.
Calibrating
A. Weighing and Dividing
*Ziploc bags or any container that can be sprayed into
simultaneously and not mixed are required for calibrating.
1. You will need a kitchen scale or electronic scale that can measure in
grams. Set the scale to grams.
2. Place a calibration nozzle on the gun. Get two Ziploc bags or
preferred device for weighing. Surround one bag around the Iso
side of the tip, surround the other bag around the Poly side of the
tip. Squeeze the trigger until one of the bags is 90% full. Minimal
reading of 30 grams is best for calibrating.
3. Place the Iso bag on the scale. (Iso is the darker chemical; brown).
Take the weight of your Iso.
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4. Place the Poly bag on the scale. (Poly is the lighter chemical; clear).
Take the weight of your Poly.
5. Determine the weight of the Iso and the Poly. Take the weight of
the Iso and divide it by the weight of the Poly. This is used to
determine the ratio of A parts per B.
6. Dow Chemical Company and Polyfoam 2.0 lb foam has a ratio of
1.00 parts Iso per 1.00 part Polyol. In order to achieve this ratio
divide the amount of Iso by the amount of Polyol.
7. Ex.
A/B= Ratio
A=48grams B=40grams
48g/40g = 1.2 Ratio
1.2 is exactly right!
8. 3M SFI-175 needs a ratio of 1.1 to 1.0
3M EX: A/B Ratio A=44G B=40G
44G/40G=1.1 Ratio
1.1 is exact for 3M
9. Fomo Products Handi-Foam needs a ratio of 1:1. (In order to
achieve this ratio you need to take the amount of the A chemical
and divide it into the amount of B chemical.) Handi-Foam 1.75 lb
closed cell and Handi-Foam Low Density foam are both 1:1 ratio.
10.Ex.
A/B= Ratio
A=44grams B=44grams
44g/44g = 1.00 or 1:1 ratio
1.0 is OK!
11.If unsuccessful, adjust pressure in accordance to volume needed.
If lower than 1.00, increase necessary component. If higher than
1.00, decrease necessary component. Do not exceed 200 PSI
when adjusting pressure.
B. Testing for Good Foam
1. After achieving the ratio, it is necessary to test foam.
2. Spray onto any surface and wait for foam to react. Watch the
foam; it will begin to rise. After 30-45 seconds the foam should be
tack free. Substrate temperatures and environmental issues could
cause the foam to take longer to become tack free.
3. With closed cell foam, the foam should begin to rise about 30x and
form a very hard rigid coating.
4. With open cell foam, the foam should begin to rise about 100x and
form a soft squishy coating.
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5. If all is well, the system is completely ready to start spraying foam.
6. If foam does not test out well, recalibrate and test for good foam
once more.
7. If foam still does not come out well, refer to the troubleshooting
section later in the manual.
Spraying Foam
Getting Started
A. Preparing to Spray
1. Before attempting to spray foam, if at all possible, try to raise
the environment and substrate temperatures to 70 degrees or
above.
2. Cover all windows, doors, bath tubs, showers, sinks, floors, etc.
Anything that does not need to be sprayed needs to be covered.
3. Be aware of all objects surrounding you. Foam particles can
travel through the air and stick. Be sure to warn others and ask
them to move cars, trailers, tools, etc.
B. Spraying Foam
1. Double check that all valves within the system are turned on.
2. Turn the polyol valve at the end of the hose, ON.
3. Turn the iso valve at the end of the hose, ON.
4. Insert a fan tip into the gun.
5. Spray onto the surface. There are different techniques for
different substrates and surfaces. Depending on what you are
spraying and the amount of space available, techniques can
vary.
C. Techniques for Spraying Foam
1. Spraying in a stud cavity is one of the most common ways of
spraying.
2. When spraying in a stud cavity, start at the bottom of the stud.
Slowly work your way up the cavity, from bottom to top, going
side to side of the cavity while staying about 12 inches away
from the wall.
3. Depending on thickness needed and speed of applier, overlap at
least 25% and no more than 75%.
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4. Make sure that your hand stays perpendicular to the surface on
which you are spraying. Not staying perpendicular can cause
excess buildup and waste of foam.
5. The Picture Frame technique is another technique used to spray.
This technique involves outlining the area in which you are
spraying, and then filling in the surface area.
6. Touch up spraying is commonly used in all spraying
applications. Due to the fact that the gun is fingertip sensitive,
lightly pulling the trigger will allow you to touch up in areas that
are light or missed.
7. Caulking small gaps and cracks and filling in holes are also two
types of techniques that can be used while spraying foam.
Inserting the tip of the gun into holes, gaps, or cracks and
lightly pulling the trigger will allow you to fill in.
8. Spraying overhead is another technique people use daily. When
spraying overhead, try to stay 8-12 inches from the wall to keep
overspray light. Use the same technique as spraying in the stud
cavity.
9. When spraying, always be sure that you do not spray too far or
too close. Spraying too far away will result in a “popcorn” look
and loss of yield. Spraying too close will result in blowing foam
off the wall and losing a lot of waste.
Shut Down Procedures
I.
Daily Shutdown
A. Shutting down the System
1. Make sure all valves on the gun assembly are shut off. Roll up
the hose onto a hose rack.
2. Turn off all valves on the Iso tank and the Polyol tank.
3. Turn off the nitrogen regulators by turning the dial
counterclockwise.
4. Purge the air from the nitrogen lines by loosening the fitting on
the bottom of the nitrogen regulator.
5. Remove the nitrogen regulators from the nitrogen bottle and
replace the safety cap.
6. Double check to make sure that all valves are turned off.
II.
Temperature Control
A. Heating or Cooling the System
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1. It is necessary to keep chemicals in a controlled environment as
close to 85 degrees Fahrenheit as possible.
2. Depending on the environmental temperature, turn on the
heater or air conditioning.
3. It is very important to maintain chemical temperatures. Keep
the tanks heated or cooled overnight.
B. Temperature Effects
1. The chemical must sprayed at optimum temperatures of 70-90
degress Farenheit in order to achieve maximum results.
2. Please refer to the diagram A below to see effects of
poorchemical temperature management.
Diagram A
Maintenance
I.
Gun Maintenance
A. Preparing the Gun for Spraying
1. Before spraying foam, it is essential to the life of your gun to
prepare it for spraying.
2. Apply petroleum jelly to the inside of the gun where the tips are
inserted. Be sure there is little or no chemical within the gun
before applying the petroleum jelly.
3. Make sure the gun is properly cleaned before spraying. (Proper
cleaning techniques will explained later in this section)
B. Cleaning the Gun Interior
1. Before attempting to clean the gun, make sure that all pressure
is relieved on the gun and that all valves are turned off.
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2. Remove the small metal staple on the side of the gun.
3. Slowly and carefully remove the hose from the back of the gun.
4. Watch closely for the small filter and make sure it does not fall
out of the gun.
5. Collect the filter and store it in a safe place. Pull the frother
from the interior of the gun.
6. Using DK817 or DPM, clean the frother and the filter screen.
Also, clean the interior of the gun.
C. Assembling the Gun
1. Replace the frother into the interior of the gun. Be sure that the
small orifice on the frother is facing toward the front of the gun.
2. Replace the filter screen on top of the frother. Be sure that
there is no trash left on the filter screen.
3. Replace the hose onto the back of the gun. Insert the metal
staple and firmly insert it into place.
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II.
Miscellaneous Maintenances
A. Upkeep of the System
1. Always keep the tanks as warm as possible, especially if
chemical is stored outside.
2. Make sure to clean all fittings and keep all fittings in working
order.
3. Clean the gun after every use.
Safety
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I.
Safety Supplies
A. Suiting Up to Spray
1. The Tyvek Suit will offer full body protection from head to toe.
2. Nitrile Dipped Gloves will provide full protection on your hands.
3. Half mask respirators will cover your nose and mouth area.
Install two cartridges per mask. Masks are good for 48 hours of
use. When not using the mask, insert the mask into an airtight
plastic bag. This will extend the life of the cartridge.
4. Advanz Safety Goggles will provide you with a full eye
protection and 30 advances of film to allow clear vision while
spraying.
B. Isocyanate Safety
1. Isocyanate is an extremely harmful chemical. Contact to the
eyes, skin, mouth, or respiratory system can be very harmful.
Exposure to high iso vapor levels or skin contacts with liquids of
mists can make you sick. Exposure for even a short time can
cause severe irritation of the nose, throat and lungs. Some
other symptoms are breathlessness and chest pains. Excessive
exposures can result in severe coughing spasms and may lead
to bronchitis or chemical pneumonia. These symptoms of
overexposure generally clear up in a day or two. The lung
capacity of affected individuals may, however be decreased for a
longer time. Skin and/or respiratory sensitization can take
many months or years to develop.
Troubleshooting
Common Problems
Problem
Reason
Solution#1
Solution#2
Light color foam,
falling off the wall.
Too much
Polyol,
not enough Iso.
Adjust pressure
on Iso higher.
Dark color foam,
Too much Iso,
Clean out
frother
and filter on Iso
side.
Clean out
Spray Foam Systems: Nitrosys Owner’s Manual
Adjust pressure
Page 15
falling off the wall.
not enough
Polyol.
Foam is not frothing,
smaller Fan pattern
Foam is too
cold
Continuous blockage
in gun filter screen
Hose needs
cleaning
No chemical out of Iso side
Iso hose has
blockage
Can not calibrate or
calibration will not work
Many
Foam is shrinking in the walls
Substrate too
cold
Out of DPM or
Pressure
Purge system will not work
Spray Foam Systems: Nitrosys Owner’s Manual
frother
and filter on
Poly side.
Roll up hose
and heat
it up
on
Polyol higher.
Clean hose with
cleaning
solution
Remove hose
and clean hose
as much as
possible.
Double check
regulators and
tank pressures
Warm up
substrate
Add DPM
Replace gun
filter screen
Ensure tanks
are pre-heated
properly
If hose is
completely
blocked, replace
hose.
Call Customer
Service
Warm up
environment
Add Pressure
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PART NUMBER
259212
259219
259211
259216
259218
259215
258217
259214
259220
259206
259208
COLOR
YELLOW BACK
WHITE/BLACK
WHITE BACK
WHITE BACK
GREY BACK
GRAY BACK
BLACK BACK
BLACK BACK
BACK BACK
BLACK NACK
YELLOW BACK
Spray Foam Systems: Nitrosys Owner’s Manual
OUTPUT
LOW OUTPUT
MEDIUM OUTPUT
MEDIUM OUTPUT
MEDIUM OUTPUT
HIGH OUTPUT
HIGH OUTPUT
HIGHEST OUTPUT
HIGHEST OUTPUT
HIGHEST OUTPUT
NOZZLE TYPE
CAULKING NOZZLE
CONE SPRAY
CAULKING NOZZLE
FAN SPRAY
CONE SPRAY
FAN SPRAY
CONE SPRAY
FAN SPRAY
POUR NOZZLE
CALIBRATION TIPS
CALIBRATION TIPS
Page 17