Important Isocyanate (ISO) Information
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312666W
Material Self-ignition
Keep Components A and B
Separate
Moisture Sensitivity of
Isocyanates
Exposure to moisture (such as humidity) will
cause ISO to partially cure, forming small,
hard, abrasive crystal that become suspended
in the fluid. Eventually a film will form on the
surface and the ISO will begin to gel,
increasing in viscosity.
NOTE:
The amount of film formation and rate
of crystallization varies depending on the blend
of ISO, the humidity, and the temperature.
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.
Some materials may become self-igniting if applied
too thick. Read material manufacturer’s warnings
and Safety Data Sheet (SDS).
Cross-contamination can result in cured material in
fluid lines which could cause serious injury or
damage equipment. To prevent cross-contamination:
•
Never
interchange component A and component
B wetted parts.
•
Never use solvent on one side if it has been
contaminated from the other side.
NOTICE
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.
•
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.
