Page 8 - Combined_3_OCR

APPLICATION INSTRUCTIONS

The Pluragard 601 foam system uses two components and can be applied with
most conventional air-assisted or airless urethane spray foam units.

Pre-Operation Step-by-Step Check List for Applicators
1. Permanently mark pumps, hoses and impingement valves as "R" component
or "T" component to prevent contamination. Vo not LL6a aqutpmant Wtth
wttong component.*

2. Surface to be sprayed must be dry, free from grease, cale, and dirt.

Surface temperature should be between 70° - 100°F.

4. Air temperature inside spray area should be above 40 F.

5. All material filters should be clean.

6 • Drain all moisture traps and air supply lines.

7. Check nitrogen relief valve...see details below.**
Attach clean gun to material hose.^* Try gun wtthoat ttp to clear lines

9. Run volume metering check. Ratto o^ components must ba 1:1 by vohima.
10, Heat both components to 120° - 150 F. Use heat exchanger or heat-
traced lines to assure that materials are in this temperature rang
whan X/iey /teacA tha gun.

11. Install spray tip and set delivery pressure of both components as
recommended by the gun supplier.Make sure the pumps deliver both
components under equal pressure (±100 pounds). Example: If "R"
component is at 1800 psi., "T" component pressure should always be
within the range of 1700-1900 psi.

12. Sp^tay a SmaJUL tut (Vtact. Observe the spray pattern to insure that
materials are well mixed. Foam should be tack-free in about one minute

X- Store ”R” component equipment separately from ”T” component equipment to prevent
them from being accidentally used with the wrong component.

** Nitrogen Pressure on Drum: To assist the pump in material pickup and retention of
blowing agent, nitrogen pressure not exceeding 3 psi. should be applied to the
drum. A pressure relief valve should be used to maintain the pressure at 3 psi.
+ Coating the outside surface of the gun with vaseline before using makes it easier
to clean. A micro insert used in place of the less-restricted Teflon (trademark
of E. I. duPont deNemours, Inc.) insert may help accomplish more thorough mixing.
it Material Delivery Pressure: The air supply should be adjusted to develop even
pressure on the component delivery lines when the spray gun trigger is fully
depressed. A change in tip size will require an adjustment of air pressure to
maintain the required line pressure.