Specification

Material Safety Data Sheet continued (R “A”) Page
2
Human Effects of Overexposure
Inhalation: May cause respiratory sensitization in susceptible individuals. At room temperature, vapors are minimal due to low
vapor pressure. If heated or sprayed as an aerosol, excessive concentrations are attainable that could be hazardous on
single exposure. Excessive exposure may cause irritation of the eyes, upper respiratory tract and lungs. Effects may be
delayed. Decreased ventilatory capacity has been associated with exposure to similar Isocyanates; it is possible that
exposure to MDI may cause impairment of lung function.
Skin: May cause allergic skin reaction in susceptible individuals. Prolonged or repeated contact may cause skin irritation
and may stain the skin.
Ingestion: This is not considered a common occupation route of exposure, and single dose toxicity is low.
Threshold Limit Value (ACGIH): TLV is .005 PPM TWA
Permissible Exposure Limit (OSHA): PEL is .02 PPM
VI. Emergency & First Aid Procedures
Eye contact: Flush with clean, lukewarm water at low pressure for at least 15 minutes, occasionally lifting eyelids. Consult a
physician immediately.
Skin Contact: Remove contaminated clothing. Wash exposed area with warm soapy water thoroughly. Contaminated
clothing should be properly laundered before reusing.
Inhalation: Remove victim from area of exposure to safe area. If not breathing, give mouth to mouth resuscitation. If
breathing is difficult, give oxygen. Consult a physician immediately.
Ingestion: No adverse effects anticipated by this route of exposure incidental to proper industrial handling.
Note to Physician: No specific antidote. Supportive care. Treatment based on judgement of physician in response to reaction of
the patient. The manifestation of respiratory symptoms, including pulmonary edema, resulting from acute
exposure, may be delayed. May cause respiratory sensitization.
Carcinogenicity: Neither MDI nor Polymeric MDI are listed by the NTP, IARC, or regulated by by Federal OSHA or Cal OSHA
as carcinogens.
Medical conditions aggravated by exposure: Asthma, other respiratory disorders (bronchitis, emphysema, bronchial
hyperreactivity), skin allergies, eczema.
VII. Employee Protection Recommendations
Eye Protection: Liquid chemical goggles or full face shield. No contact lenses should be worn.
Skin Protection: Chemical resistant gloves such as natural rubber, or polyvinyl alcohol. Cover as much as possible with
appropriate clothing. If skin creams are used, keep the area covered by the cream to a minimum.
Respiratory Protection: This product has demonstrated no observable effects at room temperature, however, atmospheric levels
should be maintained. In addition, in any spray application or situation where airborne particulates or aerosol
are generated, a supplied air source must be provided.
Ventilation: Natural or mechanical. Local exhaust will keep the TLV below minimum in most cases. Spills or other
emergencies may require more forceful ventilation means.
Other: Safety showers and eye wash stations should be provided in all work areas. All employees should be properly
trained.
VIII. Reactivity Data
Stability: Stable under recommended storage conditions.
Polymerization: May occur with incompatible reactants, especially strong bases, water or temperature over 347°F (175°C.).
Temperatures over 120°F (49°C) accelerate the reaction with water.
Incompatibility (materials to avoid): Water, acid, bases, metal compounds and surface active materials. Avoid water as it
reacts to form heat, CO2 and insoluble urea. The combined effect of the CO2 and heat can produce enough
presence of the above mentioned materials.
Hazardous Decomposition Products: Isocyanate vapor and mist, carbon dioxide, carbon monoxide, nitrogen oxides and traces of
hydrogen cyanide.