Graco Inc. GC-1402F User Manual download pdf (Page 6)

6 GC-1402E

This equipment needs to be grounded.

Ground the dispense gun through connection to a

GlasCraft approved grounded uid supply hose.

Check your local electrical code and related manuals

for detailed grounding instructions of all equipment in

the work area.

A grounding wire and clamp are provided,

assembly p/n 17440-00 with all FRP equipment.

Grounding

Isocyanate Conditions

Rev. G 6/17/2008 21

Isocyanate Conditions

Material Self-ignition

Moisture Sensitivity of

Isocyanites

Isocyanites (ISO) are catalysts used in two component

foam and polyurea coatings. ISO will react with moisture

(such as humidity) to form small, hard, abrasive crystals,

which become suspended in the fluid. Eventually a film

will form on the surface and the ISO will begin to gel,

increasing in viscosity. If used, this partially cured ISO

will reduce performance and the life of all wetted parts.

To prevent exposing ISO to moisture:

• Always use a sealed container with a desiccant

dryer in the vent, or a nitrogen atmosphere. Never

store ISO in an open container.

• Keep the ISO lube pump reservoir (if installed) filled

with Graco Throat Seal Liquid (TSL), Part 206995.

The lubricant creates a barrier between the ISO and

the atmosphere.

• Use moisture-proof hoses specifically designed for

ISO, such as those supplied with your system.

• Never use reclaimed solvents, which may contain

moisture. Always keep solvent containers closed

when not in use.

• Never use solvent on one side if it has been contam-

inated from the other side.

• Always lubricate threaded parts with ISO pump oil

or grease when reassembling.

Keep Components A and

B Separate

Foam Resins with 245 fa

Blowing Agents

Some foam blowing agents will froth at temperatures

above 90°F (33°C) when not under pressure, especially

if agitated. To reduce frothing, minimize preheating in a

circulation system.

Spraying materials containing isocyanates creates

potentially harmful mists, vapors, and atomized partic-

ulates.

Read material manufacturer’s warnings and material

MSDS to know specific hazards and precautions

related to isocyanates.

Prevent inhalation of isocyanate mists, vapors, and

atomized particulates by providing sufficient ventila-

tion in the work area. If sufficient ventilation is not

available, a supplied-air respirator is required for

everyone in the work area.

To prevent contact with isocyanates, appropriate per-

sonal protective equipment, including chemically

impermeable gloves, boots, aprons, and goggles, is

also required for everyone in the work area.

Some materials may become self-igniting if applied

too thickly. Read material manufacturer’s warnings

and material MSDS.

The amount of film formation and rate of crystalli-

zation varies depending on the blend of ISO, the

humidity, and the temperature.

NOTICE

To prevent cross-contamination of the equipment’s

wetted parts, never interchange component A (isocy-

anate) and component B (resin) parts.

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Graco Inc. GC-1402F User Manual Page 6

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