Glas Craft Probler P2 User Manual page 12

To avoid moisture contamination, do not open contain-
ers until ready for use. After use, the remaining material
should be re-sealed in the original container and stored in
areas away from moisture.
During clean-up of spilled isocyanate component, respira-
tors, gloves and eye protection must be worn. Isocyanates
which have been spilled can be controlled by covering
them with dry sawdust and/or other absorbent, inert mate-
rials. Care should be taken to avoid skin contact. The ab-
sorbent material and the absorbed isocyanate should be
collected promptly, placed in an open-top container, and
treated with dilute solutions of ammonium hydroxide and/
or alcohol. While being treated in this manner, the material
should be in an adequately ventilated area. Clothing on
which any material has been spilled should be removed
immediately, and cleaned before being worn again.
Clean-Up Solvents
WARNING
A hazardous situation may be present in your pressurized
fluid system!
Halogenated Hydrocarbon Solvents can cause an explo-
sion when used with aluminum or galvanized components
in a closed (pressurized) fluid system (pumps, heaters, fil-
ters, valves, spray guns, tanks, etc.).
The explosion could cause serious injury, death and/or
substantial property damage.
Cleaning agents, coatings, paints, etc. may contain Halo-
genated Hydrocarbon Solvents.
Some GlasCraft spray equipment includes aluminum or
galvanized components and will be affected by
Halogenated Hydrocarbon Solvents.
There are three key elements to the Halogenated Hydro-
carbon (HHC) solvent hazard.
1. The presence of HHC solvents. 1,1,1-Trichloro
ethane and Methylene Chloride are the most common of
these solvents. However, other HHC solvents are suspect
if used; either as part of paint or adhesives formulation, or
for clean-up or flushing.
2. Aluminum or Galvanized Parts. Most handling
equipment contains these elements. In contact with these
metals, HHC solvents could generate a corrosive reaction
of a catalytic nature.
SAFETY
3. Equipment capable of withstanding pres-
sure. When HHC solvents contact aluminum or galva-
nized parts inside a closed container, such as a pump,
spray gun, or fluid handling system, the chemical reac-
tion can, over time, result in a build-up of heat and pres-
sure, which can reach explosive proportions.
When all three elements are present, the result can be
an extremely violent explosion. The reaction can be
sustained with very little aluminum or galvanized metal:
any amount of aluminum is too much.
The reaction is unpredictable. Prior use of an HHC
solvent without incident (corrosion or explosion) does
NOT mean that such use is safe. These solvents can
be dangerous alone (as a clean-up or flushing agent) or
when used as a component of a coating material. There
is no known inhibitor that is effective under all circum-
stances. Furthermore, the mixing of HHC solvents with
other materials or solvents, such as MEK, alcohol, and
toluene, may render the inhibitors ineffective.
The use of reclaimed solvents is particularly hazardous.
Reclaimers may not add any inhibitors, or may add
incorrect amounts of inhibitors, or may add improper
types of inhibitors. Also, the possible presence of water
in reclaimed solvents could feed the reaction.
Anodized or other oxide coatings cannot be relied upon
to prevent the explosive reaction. Such coatings can be
worn, cracked, scratched, or too thin to prevent contact.
There is no known way to make oxide coatings or to
employ aluminum alloys, which will safely prevent the
chemical reaction under all circumstances.
Several solvent suppliers have recently begun pro-
moting HHC solvents for use in coating systems. The
increasing use of HHC solvents is increasing the risk.
Because of their exemption from many State Implemen-
tation Plans as Volatile Organic Compounds (VOC's),
their low flammability hazard, and their not being classi-
fied as toxic or carcinogenic substances, HHC solvents
are very desirable in many respects.
0