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MATERIAL SAFETY DATA SHEET <br /> Product Name: Base Seal® (Component `A', Isocyanate) <br /> MSDS-AO04 <br /> standard (29 C.F.R. 1910.134). <br /> Consult your supervisor or S.O.P, for special handling instructions. <br /> Splash goggles. Full suit. Vapour respirator or self-contained <br /> Personal Protection in Case breathing apparatus (SCBA). Boots. Gloves. Suggested protective <br /> of a Large Spill: clothing might not be adequate. Consult a specialist before handling <br /> this product. <br /> Section 9: Physical and Chemical Properties <br /> Appearance/Physical Liquid Vapour Pressure: 0.000004 mmHg <br /> State.- <br /> Odour: Slightly musty Vapour Density: 8.5 <br /> Colour: Brown pH: Not applicable <br /> Evaporation Rate: Not available Specific Gravity: 1.23 (Water= 1) <br /> Boiling >300°C decomposes pH Not applicable <br /> Point/Condensation <br /> Point: <br /> Melting/Freezing Not available Flash Points: Closed cup: Closed cup: <br /> Point: >110°C (230°F). Open cup: <br /> 230°C (446°F). <br /> Section 10: Stability and Reactivity <br /> StabilitV and Reactivity: Stable at room temperature. <br /> Conditions of Instability: Avoid high temperatures. Avoid freezing. <br /> IncompatibilitV with Various This product will react with any materials containing active hydrogens <br /> Substances: such as water, alcohol, amines, bases and acids. The reaction with <br /> water is very slow under 50°C (122°F) but is accelerated at higher <br /> temperatures. Some reactions may be violent. <br /> Hazardous Decomposition Carbon Monoxide, Carbon Dioxide, Nitrous Oxide and HCN. <br /> Products: <br /> Hazardous Polymerization: Polymerization may occur at elevated temperatures in the presence of <br /> alkalis, tertiary amines and metal compounds. <br /> Section 11: Toxicological Information <br /> ToxicitV to Animals: LD50 Rat Oral: >5000 mg/kg <br /> LD50 Rabbit Dermal: >5000 mg/kg <br /> LC50 Rat Respirable aerosol: 2240 mg/m3 1 hours <br /> LC50 Rat Respirable aerosol: 490 mg/m3 4 hours <br /> Page 5 of 9 (A) <br />