Important Isocyanate (Iso) Information - Graco ProMix PD2K Operation

Important Isocyanate Isocyanate (ISO)
Important Important Isocyanate
Isocyanates (ISO) are catalysts used in two
component materials.
Isocyanate Conditions Conditions
Isocyanate Isocyanate Conditions
Spraying or dispensing fluids that contain
isocyanates creates potentially harmful mists,
vapors, and atomized particulates
• Read and understand the fluid manufacturer's
warnings and Safety Data Sheet (SDS) to know
specific hazards and precautions related to
isocyanates.
• Use of isocyanates involves potentially
hazardous procedures. Do not spray with the
equipment unless you are trained, qualified,
and have read and understood the information
in this manuals and in the fluid manufacturer's
application instructions and SDS.
• Use of incorrectly maintained or mis-adjusted
equipment may result in improperly cured
material. Equipment must be carefully
maintained and adjusted according to
instructions in the manual.
• To prevent inhalation of isocynate mists, vapors,
and atomized particulates, everyone in the
work area must wear appropriate respiratory
protection. Always wear a properly fitting
respirator, which may include a supplied-air
respirator. Ventilate the work area according to
instructions in the fluid manufacturer's SDS.
• Avoid all skin contact with iscocyanates.
Everyone in the work area must wear chemically
impermeable gloves, protective clothing and
foot coverings as recommended by the fluid
manufacturer and local regulatory authority.
Follow all fluid manufacturer recommendations,
including those regarding handling of
contaminated clothing. After spraying, wash
hands and face before eating or drinking.
Keep Keep Components Keep Components A A A and Components
Cross-contamination can result in cured
material in fluid lines which could cause serious
injury or damage equipment. To prevent
cross-contamination:
• Never Never interchange component A and component Never
B wetted parts.
• Never use solvent on one side if it has been
contaminated from the other side.
3A4486D
(ISO) Information
(ISO)
and B B B Separate and Separate Separate

Important Isocyanate (ISO) Information

Information
Information
Moisture Sensitivity Sensitivity of of of Isocyanates
Moisture Moisture Sensitivity
Exposure to moisture (such as humidity) will cause
ISO to partially cure; forming 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.
Partially cured ISO will reduce performance and
the life of all wetted parts.
• Always use a sealed container with a desiccant
dryer in the vent, or a nitrogen atmosphere.
Never store ISO in an open container.
Never Never
• Keep the ISO pump wet cup or reservoir (if
installed) filled with appropriate lubricant. The
lubricant creates a barrier between the ISO and
the atmosphere.
• Use only moisture-proof hoses compatible with
ISO.
• Never use reclaimed solvents, which may
contain moisture. Always keep solvent
containers closed when not in use.
• Always lubricate threaded parts with an
appropriate lubricant when reassembling.
NOTE: The amount of film formation and rate of
NOTE: NOTE:
crystallization varies depending on the blend of ISO,
the humidity, and the temperature.
Changing Materials
Changing Changing
Changing the material types used in your
equipment requires special attention to avoid
equipment damage and downtime.
• When changing materials, flush the equipment
multiple times to ensure it is thoroughly clean.
• Always clean the fluid inlet strainers after
flushing.
• Check with your material manufacturer for
chemical compatibility.
• When changing between epoxies and urethanes
or polyureas, disassemble and clean all fluid
components and change hoses. Epoxies often
have amines on the B (hardener) side. Polyureas
often have amines on the A (resin) side.
Isocyanates
Isocyanates
NOTICE
NOTICE NOTICE
Materials
Materials
NOTICE
NOTICE NOTICE
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