<p> M ATERIAL S AF ETY DATA SHEET PABCO Gypsum 10600 White Rock Road, Suite 100 Rancho Cordova, CA 95670-6032 1-916-631-6500 Fax 916-459-4913</p><p>Preparation Date: January 13, 2012</p><p>SECTION I – PRODUCT INFORMATION Trade Name/Synonym: Gypsum RTECS NO: None</p><p>SECTION II – HAZARDOUS INGREDIENTS/IDENTITY INFORMATION I N G R E D I E N T CA S R E GI S T R Y # CALCIUM SULFATE “GYPSUM” 10101-41-1</p><p>NON-TOXIC MATERIAL </p><p>CARCINOGEN STATUS: N/A</p><p>SECTION III – PHYSICAL/CHEMICAL CHARACTERISTICS Boiling Point: N/A Specific Gravity (H20 = 1): 2.2 – 2.3</p><p>Vapor Pressure: N/A Melting Point: N/A</p><p>Vapor Density: N/A Evaporation Rate: N/A (Butyl Acetate = 1) Solubility in Water: N/A</p><p>Appearance and Odor: White to off-white fine powder – odorless</p><p>SECTION IV – FIRE AND EXPLOSION HAZARD DATA Flash Point (Method Used): Non-Flammable </p><p>Flammable Limits: N/A Extinguishing </p><p>Media: None Required Special </p><p>Fire Fighting Procedures: N/A</p><p>Unusual Fire and Explosion Hazards: N/A SECTION V – PHYSICAL HAZARDS AND REACTIVITY DATA Stability: Stable </p><p>Incompatibility (Materials to Avoid): N/A </p><p>Hazardous Decomposition or Byproducts: N/A </p><p>Hazardous Polymerization: Will not occur</p><p>SECTION VI – HEALTH HAZARD DATA Health Hazards (Acute and Chronic) Skin Contact: Rinse with water Eye Contact: Flush with water or designated eyewash product</p><p>Carcinogenicity: N/A</p><p>Signs and Symptoms of Exposure: N/A</p><p>Medical Conditions Generally Aggravated by Exposure: Could cause skin irritation: Prolonged inhalation of dust can produce scar tissue in the lungs. The Condition might not be reversible.</p><p>Emergency and First Aid Procedures: Reduce Exposure</p><p>SECTION VII – PRECAUTIONS FOR SAFE HANDLING AND USE Steps To Be Taken In Case Material Is Released or Spilled: Non-Hazardous, Non-Toxic material – sweep and place in proper container</p><p>Waste Disposal Method: May dispose in accordance with local dumping regulations</p><p>Precautions To Be Taken In Handling and Storing: No special precautions required, only normal procedures necessary for handling powders</p><p>Other Precautions: None SECTION VIII – CONTROL MEASURES Respiratory Protection (Specify Type):Dust mask for dusty conditions</p><p>Ventilation: Local Exhaust: Exhuast Fan Special: N/A</p><p>Mechanical (General): Natural Ventilation Other: N/A</p><p>Protective Gloves: Rubber, if desired</p><p>Eye Protection: Safety glasses with side shields</p><p>Other Protective Clothing or Equipment: N/A</p><p>Work/Hygienic Practices: N/A</p><p>No guaranty is made as to the accuracy of any data or statements contained herein. While this material is furnished in good faith, no warranty, express or implied, of merchantability, completeness, fitness or otherwise is made. This material is offered only for your consideration, investigation, and verification, and PABCO Gypsum disclaims any liability incurred from the use thereof and shall not, in any event, be liable for any special, incidental or consequential damages arising from such use. This information is not intended to be all-inclusive and the manner and conditions of use and handling of the material involved may require other or additional considerations. It should not be construed as a recommendation for any specific use.</p>