Page 5 - Catalogs

SECTION 1.3
GENERAL GUIDELINES

TOXICITY AND HEALTH CONSIDERATIONS Solvents may cause allergic skin or respiratory reactions.
Isocyanates may cause allergic skin or respiratory reactions. Immediate effect is stupor (central nervous system
Individuals with chronic respiratory problems or prior depression). Individuals with chronic respiratory problems
respiratory reactions to such material should not be exposed to or prior respiratory reactions to such materials should not
vapors. All personnel in the application area must wear OSHA be exposed to vapors.
approved air respirators where an airborne concentration of The application method of using an airless sprayer will cause
isocyanate vapors is expected to exceed the threshold limit the same volume of product to produce higher airborne vapor
value (TLV) or if the concentration levels are unknown. For concentrations in a shorter period than other application
emergencies, use a positive pressure self-contained breathing methods. It is important that air is monitored and full
apparatus. Cartridge-type respirators are not approved for precautions are taken as indicated above.
protection against isocyanates because they have poor
warning properties since the odor at which isocyanate can First Aid: In case of skin contact, remove contaminated clothing
be smelled is substantially higher than the exposure limits. as needed and immediately wash off with plenty of water and
Use explosion proof, suction type, ventilation equipment mild soap for at least 15 minutes.
(exhaust fans and blowers) with sufficient cfm capacity to If medical attention is required, have label and safety data
keep isocyanate vapors below the TLV limit. sheet (SDS) available for physician.
Caution! Air circulation and exhaustion of isocyanate vapors For industrial use by professional applicators only. Not
must be maintained until the coatings have fully cured to ensure intended for sale to the general public. Not to be sold or
that no potential fire, explosion or health hazard remains. delivered to a minor. Keep out of the reach of children.
Warning symptoms (irritation of the eyes, nose and throat or HEALTH & SAFETY PRECAUTIONS
odor) are not adequate to prevent chronic overexposure from The uncured components of these products can cause
inhalation. This material can produce asthmatic sensitization irritation to the eyes, skin, mucous membranes and respiratory
upon even a single inhalation or upon repeated inhalation tract, and are harmful if swallowed. Avoid contact with eyes
exposures to lower concentrations. Exposure to vapors of and skin, especially open cuts. Wear protective clothing,
heated isocyanates can be extremely dangerous. Employee chemical-resistant-rubber gloves, chemical-tight goggles,
education and training in safe handling of this material is protective-barrier cream, etc. to prevent contact with material.
required under OSHA Hazard Communication Standard.
Wash hands with soap and water before eating, drinking,
Portable, air-sampling equipment can be used to measure the smoking, applying cosmetics, or using the toilet facilities.
content of some solvents in the air. Work ers and foreman must Launder contaminated clothing and footwear before reuse.
be certain that measurements of this type are being made Air-dry contaminated clothing and keep in a well ventilated
when people are working in an enclosed area. area where fumes can dissipate before laundering. Discard
When solvent vapor is present, an approved fresh-air-supplied, unwashable contaminated shoes and clothing. Safety shower
respirator with an approved source of respirable air must be and eye wash stations should be available. Educate and train
used for protection. The use of a fresh air supplied respirator employees in the safe use of all products. Untrained persons
does not reduce the necessity for good ventilation, as this is must not be allowed in or around work areas unsupervised
still needed to lessen fire hazards and ensure proper drying and without proper safety and respiratory equipment.
of coatings. Prior to beginning any project, the health and safety of building
Any time a worker begins to feel discomfort or irritation to occupants and people in adjacent areas and buildings should
the eyes, nose, or throat, the concentration of solvent vapor be considered. Vapors are heavier than air and can travel
is too high for steady exposure. If a person feels light-headed, considerable distances. Take care to protect these people by
giddy, dizzy or exhilarated, the solvent vapor concentration is posting signs, sealing off buildings from infiltration of odors
too high and must be reduced by improved ventilation. Any and fumes by turning off air intake, vacating the building
persons so affected must go to an area of fresh air. or using other appropriate measures. Precautions should
continue until coatings have completely cured and no residual
The effectiveness of ventilation depends on the physical odor remains.
barriers, which restrict airflow. Open exterior areas on roofs
or decks ventilate normally by natural air move ment. Confined These products may contain chemicals that the State of
areas in rooms, tanks and some pit or pond areas, as well as California lists as causing cancer, birth defects, or other
roofs or decks surrounded by walls or high parapets require reproductive harm (Proposition 65).
forced air ventilation. OTHER SAFETY CONSIDERATIONS

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