UA0127 BULK

SECTION 2: Hazards identification

OSHA Hazards EMERGENCY OVERVIEW HMIS: Physical state Liquid HEALTH 2 Color Dark brown FLAMMABILITY 1 Odor: Musty PHYSICAL HAZARD: 1 Personal Protection: See MSDS Section 8 WARNING: CAUSES EYE, SKIN AND RESPIRATORY TRACT IRRITATION. MAY CAUSE ALLERGIC SKIN AND RESPIRATORY REACTION. MAY CAUSE LUNG DAMAGE. HARMFUL IF INHALED.

Principle Routes of Exposure

Ingestion, Aerosols or vapors can be formed during heating, foaming, o spraying, Eye contact, Skin, Lungs IDH number: 1052021 Product name: UA0127 BULK Page 1 of 7

Potential health effects

Inhalation Persons with preexisting, nonspecific bronchial hyper-reactivity can respond to concentrations below the TLV with similar symptoms as well as lead to bronchitis, bronchial spasm and pulmonary edema (fluid in lungs). Sensitization can either be temporary or permanent. Chronic: Similar to many non-specific asthmatic responses, there are reports that once sensitized an individual can experience these symptoms upon exposure to dust, cold air, or other irrtants. Methylene bisphenyl isocyanate (MDI) vapors or mist at concentrations above the TLV can iritate the mucous membranes in the respiratory tract (nose, throat, lungs) causing runny nose, sore throat, coughing, chest discomfort, shortness of breath and reduced lung function (breathing obstruction). These symptoms, which can include chest tightness, wheezing, cough, shortness of breath or asthma attack, could be immediate or delayed (up to several hours after exposure). This increased lung sensitivity can persist for weeks and in severe cases for several years. These effects are usually reversible. Over exposure to isocyanates has also been reported to cause lung damage (including decrease in lung function) which may be permanent Chenmical or hypersensitive pneumonitis with flu-ike symptoms (e.g. fever, chills) have also been reported. These symptoms can be delayed up to several hours after exposure. As a result of previous repeated overexposures or a single large dose, certain individuals will develop isocyanate sensitization (chemical asthma) which will cause then to react to a later exposure to isocyanate at levels well below the TLV. Chronic overexposure o isocyanates has been reported to cause lung damage. Skin contact Isocyanates react with skin protein and moisture and can cause ifitation which may include the following symptoms: reddening, swelling, rash, scaling or blistering. These data reinforce the need to prevent direct skin contact with MDI. Animal tests have indicated that respiratory sensitization can result from skin contact with MDI. Individuals who have skin sensitization can develop these symptoms from contact with liquid or vapor. Prolonged contact can cause reddening, swelling, rash, scaling, biistering and in some cases, skin sensitization. Chronic: Discoloration. Cured material is difficult to remove. Eye contact Liquid, aerosols or vapor are ifitating and can cause tearing, reddening and swelling. If left untreated, comeal damage can occur and injury is slow to heal. These effects are usually reversible. See Section 4 for First Aid measures Ingestion Iitation and corrosive action can occur in the mouth, stomach tissue and digestive tract if swallowed. Symptoms can include sore throat, abdominal pain, nausea, vomiting and diarrhea. Existing conditions aggravated by Pre-existing skin or lung allergies may increase the chance of developing exaggerated allergic exposure symptoms from exposure to this product. Other respiratory disorders (bronchitis, emphysema, bronchial hyperreactivity). Eczema. Asthma. Skin allergies