Merkury Innovations 312795E Manuale Utente

 

 

 

Isocyanates (ISO) are catalysts used in two component 
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 vis-
cosity. If used, this partially cured ISO will reduce perfor-
mance and the life of all wetted parts.

NOTE: The amount of film formation and rate of crystal-
lization 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.

•

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.

•

When changing materials, flush the equipment mul-
tiple 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 A side, but some use 
ISO on the B side.

Spraying or dispensing materials containing isocya-
nates creates potentially harmful mists, vapors, and 
atomized particulates.

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.

Cross-contamination can result in cured material in 
fluid lines which could cause serious injury or dam-
age equipment. To prevent cross-contamination of 
the equipment’s wetted parts, never interchange 
component A (isocyanate) and component B (resin) 
parts.