SprayEZ SPRAYEZ-3000, Руководство пользователя

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SPRAYEZ-3000 Polyurethane Proportioner User Manual
9
Keep Components A and B Separate
Cross-contamination can result in cured material in fluid lines which
could cause serious injury or damage equipment. To prevent
cross-contamination of the equipment’s wetted parts, never
interchange component A (isocyanate) and component B (resin) parts.
Moisture Sensitivity of Isocyanates
Isocyanates (ISO) are catalysts used in two component foam and polyurethane
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.
The amount of film formation and rate of crystallization varies depending on the
blend of ISO, the humidity, and the temperature.
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 DOP. 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 loosed when not in use.
•
Never use solvent on one side if it has been contaminated from the other side.
•
Always lubricate threaded parts with ISO pump oil or grease when reassembling.
Changing Materials
•
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.
•
Most materials use ISO on the RED drum, and POLY on the BLUE drum.