Trade Name/Product Number: QUICK JOINT 85 - Caulking “A PART”

SECTION 2: Hazards identification

29 CFR 1910.1200) This material is classified as hazardous under OSHA Hazard Communication Standard (29 CFR 1910. 1200) Physical state and Appearance Liquid Color Yellow Emergency Overview Reacts slowly with water to produce carbon dioxide which may rupture closed containers. This reaction accelerates at higher temperatures Inhalation at levels above the occupational exposure limit could cause respiratory sensitization and risk of serious damage to respiratory system. The onset of the respiratory symptoms may be delayed for several hours after exposure. A hyper reactive response to even minimal concentrations of diisocyanates may develop in sensitized persons.

Principle Routes of Exposure

Skin contact from liquid, vapors or aerosols. Inhalation 1 (Continue) Human Effects and Symptoms of Overexposure: ACUTE INHALATION: MDI vapors or mist at concentrations above the TLV can irritate (burning sensation) 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). Persons with a preexisting, nonspecific bronchial hyperactivity can respond to concentrations below the TLV with similar symptoms as well as asthma attack. Exposure well above the TLV may lead to bronchitis, bronchial spasm and pulmonary edema (fluid in lungs). These effects are usually reversible. Chemical or hypersensitive pneumonitis, with flu-like symptoms (e.g., fever, chills) has also been reported. These symptoms can be delayed up to several hours after exposure. CHRONIC INHALATION : As result of previous repeated overexposures or a single large dose, certain individuals develop isocyanate sensitization (chemical asthma) which will cause them to react to a later exposure to isocyanate at levels well below the TLV. 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). 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 irritants. This increased lung sensitivity can persist for weeks and in severe cases for several years. Overexposure to isocyanates has also been reported to cause lung damage (including decrease in lung function) which may be permanent. Sensitization can either be temporary or permanent. ACUTE SKIN CONTACT: Isocyanates react with skin protein and moisture and can cause irritation which may include the following symptoms: reddening, swelling, rash, scaling or blistering. Cured material is difficult to remove. CHRONIC SKIN CONTACT : Prolonged contact can cause reddening, swelling, rash, scaling, blistering, and in some cases, skin sensitization. Individuals who have skin sensitization can develop theses symptoms from contact with liquid or vapors. ACUTE EYE CONTACT: Liquid, aerosols or vapors are irritating and can cause tearing, reddening and swelling. If left untreated, corneal damage can occur and injury is slow to heal. However, damage is usually reversible. See First Aid Measures for treatment. CHRONIC EYE CONTACT: Prolonged vapor contact may cause conjunctivitis. ACUTE INGESTION : Can result in irritation and corrosive action in the mouth, stomach tissue and digestive tract. Symptoms can include sore throat, abdominal pain, nausea, vomiting and diarrhea. CHRONIC INGESTION : None found CARCINOGENICITY : No carcinogenic activity was observed in lifetime inhalation studies in rats and mice (International Isocyanate Institute). NTP : The National Toxicology Program reported that TDI caused an increase in the number of tumors in exposed rates over those unexposed. The TDI was administered in corn-oil and introduced into the stomach through a tube. Based on this study, the NTP has listed TDI as a substance that may reasonably be anticipated to be a carcinogen in its Fourth Annual Report on Carcinogens.

Medical Conditions Generally Aggravated by Exposure

Asthma, other respiratory disorders (bronchitis, emphysema, bronchial hyperactivity), skin allergies, eczema. GENERAL INFORMATION ............... Read the entire MSDS for a more thorough evaluation of the hazard FIRST AIR MEASURES: 2 FIRST AID FOR EYES : Flush with copious amount of water, preferably, lukewarm water for at least 15 minutes, holding eyelids open all the time. Refer individual to physician or ophthalmologist for immediate follow-up. FIRST AID FOR SKIN : Remove contaminated clothing. Wash affected skin thoroughly with soap and water. Wash contaminated clothing thoroughly before reuse. For severe exposures, get under safety shower after removing clothing, then get medical attention. For lesser exposures, seek medical attention if irritation develops or persists after the area is washed. FIRST AID FOR INHALATION: Move to an area free from risk of further exposure. Administer oxygen or artificial respiration as needed. Obtain medical attention. Asthmatic-type symptoms may develop and may be immediate or delayed up to several hours. Consult physician should this occur. FIRST AID FOR INGESTION...: DO NOT INDUCE VOMITING. Wash mouth out with water. DO NOT GIVE ANYTHING BY MOUTH TO AN UNCONSCIOUS PERSON. Consult a physician. NOTE TO PHYSICIAN : Eyes: Stain for evidence of corneal injury. If cornea is burned, instill antibiotic steroid preparation frequently. Workplace vapors have produced reversible corneal epithelial edema impairing vision. Skin: This compound is known skin sensitizer. Treat symptomatically as for contact dermatitis or thermal burn. If burned, treat as thermal burn. Ingestion: Treat symptomatically. MDI has a very low oral toxicity. There is no specific antidote. Inducing vomiting is contraindicated because of the irritating nature of this compound. Respiratory: This compound is a known pulmonary sensitizer. Treatment is essentially symptomatic. An individual having a skin or pulmonary sensitization reaction to this material should be removed from exposure to any isocyanate. 5 . F I R E F I G H T I N G M E A S U R E S F L A S H P O I N T > 2 6 0 . 0 0 F ( 1 2 6 . 6 C ) P e n s k y - M a r t e n s C l o s e d C u p ( A S T M D - 9 3 )