One-Component Polyurethane Cylinder Foam (134a) One-Component Polyurethane Fireblock Cylinder Foam (134a)

SECTION 2: Hazards identification

Emergency Overview WARNING! May cause eye, skin, nose, throat and respiratory tract irritation. May cause an allergic skin reaction. Harmful if inhaled. Contents under pressure, storage temperature should not exceed 120°F (49°C) in order to avoid excessive pressure build up and possible container rupture. Vapor reduces oxygen available for breathing. May cause lung injury. Respiratory sensitizer. May cause central nervous system effects. May cause liver damage. Toxic gases/fumes may be given off during burning.

Potential health effects

The primary adverse health effects of this product are related to the individual components that make-up the mixture; Polymeric isocyanate (pMDI) component and the fluorinated hydrocarbon component. These products should be used in a well ventilated area to avoid exceeding the exposure limits of these components (listed in Section 8 of this MSDS). If used indoors, mechanical ventilation or exhaust should be provided during use and until product is cured (see Section 8). Entry Route: Effects of Overexposure Inhalation: Vapors may irritate mucous membranes with tightness in chest, coughing, wheezing, or allergic asthmas-like sensitivity. Extensive overexposure can lead to respiratory symptoms such as asthma and pulmonary edema. These diseases may be aggravated by prolonged exposure. Excessive exposure may cause irritation to upper respiratory tract and lungs. Over exposure to the Fluorocarbon may cause lightheadedness, headaches, or lethargy. Persons with cardiac arrhythmia are more susceptible to increased medical risk from severe exposure. In poorly ventilated areas, vapor can easily accumulate and can cause unconsciousness and death due to displacement of oxygen. Excessive overexposure may result in these symptoms: salivation, sweating, headache, nausea, muscle twitching, incoordination, diarrhea, blurred vision, abdominal cramps, tears, tremor, and chest discomfort. Eyes: May cause eye irritation. Foam contact can cause physical damage due to its adhesive characteristics. Vapors may cause slight temporary corneal injury. Skin: May cause localized irritation, reddening or swelling. Prolonged or repeated exposure may lead to sensitization. May cause an allergic reaction. Prolonged skin exposure is unlikely to result in absorption of harmful amounts. Foam will stick to the skin causing irritation upon removal. (See section 8 for PPE guidelines). Ingestion: May cause irritation of mucous membranes in the mouth and digestive tract. Small amounts swallowed as a result of normal handling are not likely to cause injury; swallowing large amounts may cause injury. If accidental contact occurs, follow the appropriate first aid procedure described in Section 4 of this MSDS.